Porsche

Stopper, Sealing Cap.

The Genuine Porsche Stopper / Sealing Cap (Part Number: 99906301541) is an original equipment sealing component used in the windscreen washer reservoir assembly of selected classic Porsche models.

Fits:

• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93
• Porsche 924S 2.5L 1986-87
• Porsche 924S 2.5L 1988
• Porsche 944S 2.5L 16V 1987-88
• Porsche 944S2 3.0L 16V 1989-91
• Porsche 944 Turbo 2.5L 8V 1985-88
• Porsche 944 Turbo 2.5L 8V 1989-91
• Porsche 944 Turbo S 2.5L 8V 1988  

Diagram Ref No 25

The sealing cap is designed to close a designated opening in the washer fluid reservoir, helping maintain the integrity of the container and preventing unwanted fluid escape from the sealed opening.

This component is associated with the windscreen washer systems fitted to selected Porsche 924S, 944 and 911 (964) models.

Porsche reference 99906301541 supersedes the earlier reference 99906301540.

Although relatively small, the stopper plays an important role in maintaining the condition and functionality of the washer reservoir assembly.

The windscreen washer system stores cleaning fluid in a reservoir and delivers it to the windscreen through an electrically operated pump, connecting hoses and washer jets.

The stopper closes the reservoir opening for which it is specified, helping prevent washer fluid from leaking through that location.

Over time, the original sealing cap may become worn, hardened, cracked, distorted or damaged during removal and servicing.

A damaged or missing stopper can allow washer fluid to escape, potentially causing a gradual reduction in the reservoir's fluid level.

Depending on the location of the opening, leakage may become particularly noticeable after the reservoir is filled or while the vehicle is moving.

Replacing a defective stopper with a Genuine Porsche component helps restore the intended reservoir seal, reduce unwanted fluid loss and maintain the original washer system arrangement.

Ideal for washer reservoir repairs, windscreen washer system maintenance and classic Porsche restoration, this Genuine Porsche Sealing Cap provides an original equipment replacement for compatible applications.

What This Product Does:
The stopper is a sealing component fitted to a designated opening in the windscreen washer fluid reservoir.

Its primary function is to close that opening and help keep washer fluid contained within the reservoir.

The washer system relies on an adequate supply of cleaning fluid to remove dirt, road spray and other contamination from the windscreen.

If an unused or designated reservoir opening is not properly sealed, fluid may leak from the container instead of remaining available for the washer pump.

The stopper helps maintain the reservoir's intended configuration without requiring replacement of the entire container when only the sealing component is defective.

Its main functions include:

• Sealing the reservoir opening: Closes the specific opening for which the stopper is designed.
• Preventing washer fluid leakage: Helps keep cleaning fluid inside the reservoir.
• Maintaining fluid levels: Reduces unnecessary fluid loss through the sealed opening.
• Supporting washer system reliability: Helps ensure washer fluid remains available when required.
• Providing secure closure: Maintains the intended fit within the reservoir opening.
• Protecting the reservoir interior: Helps limit the entry of unwanted dirt or contamination through the closed opening.
• Maintaining original reservoir configuration: Preserves Porsche's specified washer fluid container arrangement.
• Supporting component servicing: Allows a damaged seal to be replaced separately where appropriate.
• Reducing unnecessary fluid consumption: Helps prevent repeated refilling caused by leakage at the stopper.
• Supporting vehicle maintenance: Helps keep the windscreen washing system in serviceable condition.

Symptoms Of Wear Or Failure:
The washer reservoir sealing cap does not contain moving parts, but it can deteriorate through age, chemical exposure, temperature changes and repeated removal.

A damaged stopper may no longer fit securely or provide an effective seal.

Common symptoms and signs include:

• Washer fluid leakage: Fluid may escape from the reservoir opening around the stopper.
• Repeated loss of washer fluid: The reservoir level may gradually fall without the washer system being operated.
• Dampness around the reservoir: Moisture or washer fluid residue may appear near the sealed opening.
• Visible cracks: Ageing or physical damage may cause the stopper to split.
• Hardened material: Deterioration may reduce the stopper's ability to seal against the reservoir.
• Distorted shape: A deformed stopper may no longer fit correctly.
• Loose fitment: The component may become insecure within the opening.
• Missing stopper: An uncovered opening may permit fluid loss or contamination.
• Damaged sealing edge: Cuts or tears may prevent a consistent seal.
• Fluid leakage after refilling: The reservoir may leak when filled above the height of the affected opening.
• Contamination around the opening: Dirt or debris may accumulate where the stopper is damaged or missing.
• Repeated need to top up the washer reservoir: An unresolved leak may cause the fluid level to decrease more quickly than expected.
• Poor sealing after previous repairs: Incorrect installation or use of the wrong replacement component may cause persistent leakage.
• Visible ageing: Surface deterioration may indicate that the original stopper should be inspected.

Why Replacement Matters:
Replacing a defective washer reservoir stopper helps maintain the correct sealing arrangement of the windscreen washer system.

A cracked, loose or missing sealing cap may allow washer fluid to escape, resulting in unnecessary fluid loss and reduced washer system availability.

Continued leakage can also cause fluid to accumulate around surrounding components and may leave the windscreen washer reservoir empty when cleaning fluid is needed.

Installing a Genuine Porsche replacement Stopper / Sealing Cap helps to:

• Restore the reservoir seal: Replace a defective component that no longer closes the opening properly.
• Prevent unwanted fluid loss: Help stop washer fluid escaping from the affected location.
• Maintain washer fluid availability: Keep more cleaning fluid available for windscreen washing.
• Reduce repeated refilling: Address unnecessary fluid consumption caused by a confirmed stopper leak.
• Maintain correct component fitment: Restore the intended original equipment sealing arrangement.
• Replace damaged sealing material: Renew a cracked, hardened or distorted stopper.
• Prevent contamination: Help protect the reservoir from dirt entering through an open or damaged sealing point.
• Support windscreen visibility: Maintain the washer fluid supply required for normal screen cleaning.
• Avoid unnecessary reservoir replacement: Repair the sealing point where the reservoir itself remains serviceable.
• Support classic Porsche restoration: Restore the original washer system using a Genuine Porsche component.
• Maintain factory specifications: Use the correct Porsche part reference rather than an unverified substitute.
• Support long-term system reliability: Replace deteriorated sealing components before further fluid loss occurs.

Replacement is recommended when inspection confirms that the stopper is missing, damaged, distorted or leaking.

If the reservoir opening itself is cracked or damaged, replacing the stopper alone may not resolve the problem.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99906301541

The product you are viewing cross references to these numbers

Coolant Connection Piece Adapter. 

The Genuine Porsche Coolant Connection Piece Adapter (Part Number: 9A110613100) is an original equipment engine cooling system component designed for selected Porsche 911 (997.2) Carrera and Turbo models.

Fits:

• Porsche 997 MKII Carrera C2 3.6L 2009-12
• Porsche 997 MKII Carrera C4 3.6L 2009-12
• Porsche 997 MKII Carrera C2S 3.8L 2009-12
• Porsche 997 MKII Carrera C4S 3.8L 2009-12
• Porsche 997 MKII Turbo 2010-13  

Diagram Ref No 12

Also referred to as an engine coolant pipe adapter, coolant connection piece or coolant outlet flange, this component forms part of the engine's coolant pipework and provides a secure connection between associated cooling system components.

Manufactured to Porsche's original equipment specifications, the adapter is designed to maintain the correct coolant flow path while providing a reliable, leak-resistant connection within the engine cooling circuit.

The Porsche 997.2 uses a liquid-cooled flat-six engine, which relies on continuous coolant circulation to regulate operating temperatures and prevent excessive heat accumulation.

During normal operation, the coolant pump circulates coolant through the engine and associated cooling components. The coolant absorbs engine heat and transfers it through the cooling system, allowing the engine to operate within its intended temperature range.

The coolant connection piece provides a defined passage and connection point within this system, helping maintain the integrity of the coolant circuit.

The component is listed in Porsche's engine assembly carrier and water pipe diagram, where it connects with the associated coolant pipework and retaining components.

During operation, the adapter is exposed to engine heat, coolant pressure, vibration and repeated temperature changes.

Over time, the connection piece or its associated sealing components may deteriorate through thermal cycling, corrosion, mechanical damage or incorrect installation.

A damaged adapter may allow coolant to escape, resulting in a gradual reduction in coolant level, visible leakage or cooling system pressure loss.

If coolant loss becomes severe, the engine may overheat, potentially causing significant mechanical damage.

Replacing a worn or damaged coolant connection piece with a Genuine Porsche component helps restore a secure coolant connection, maintain cooling system integrity and support reliable engine temperature regulation.

Ideal for coolant leak repairs, engine cooling system maintenance and Porsche 997.2 engine refurbishment, this Genuine Porsche adapter provides a factory-specified replacement for compatible vehicles.

What This Product Does:
The coolant connection piece adapter is part of the engine's liquid cooling system.

Its primary function is to provide a secure connection and passage between the designated coolant pipes and associated engine cooling components.

As coolant circulates through the engine, it absorbs heat from the engine's internal passages.

The heated coolant is then directed through the cooling circuit, allowing heat to be transferred away from the engine.

The adapter helps maintain the correct coolant pathway between its connected components.

Its main functions include:

• Connecting coolant components: Provides the specified connection between the engine cooling circuit and associated pipework.
• Maintaining coolant circulation: Allows coolant to pass through the intended connection.
• Preventing coolant leakage: Supports a secure, leak-resistant joint when correctly fitted and sealed.
• Maintaining cooling system pressure: Helps preserve the integrity of the pressurised coolant circuit.
• Supporting engine temperature regulation: Contributes to the reliable circulation of coolant through the engine.
• Providing correct pipe positioning: Maintains the specified connection geometry within the engine assembly.
• Supporting reliable hose attachment: Works with the appropriate connected coolant hose or pipe arrangement.
• Accommodating normal operating conditions: Functions within the designed temperature and pressure conditions of the cooling system.
• Preserving factory cooling system routing: Maintains Porsche's intended coolant connection arrangement.
• Supporting cooling system servicing: Allows a damaged connection piece to be replaced without unnecessarily replacing unrelated components.

The adapter does not circulate coolant independently.

Coolant movement is produced by the coolant pump, while operating temperature is regulated by the thermostat and associated cooling system components.

Symptoms Of Wear Or Failure:
The coolant connection piece is exposed to repeated temperature changes, cooling system pressure and engine vibration.

Although designed for long service life, the component or its associated seals may eventually deteriorate.

Common symptoms and signs of a faulty coolant connection piece include:

• Visible coolant leakage: Coolant may escape from the adapter or its connection points.
• Falling coolant level: The expansion tank may require frequent topping up because of coolant loss.
• Coolant residue: Dried coolant deposits may appear around the adapter or nearby pipework.
• Sweet coolant smell: Escaping coolant may produce a noticeable odour around the vehicle.
• Coolant beneath the vehicle: Leaking coolant may drip onto surrounding components or the ground.
• Engine temperature rising: Significant coolant loss may reduce the cooling system's ability to control engine temperature.
• Coolant warning message: The vehicle may display a low coolant warning if the level drops sufficiently.
• Loss of cooling system pressure: A defective connection may prevent the system from retaining its intended pressure.
• Cracked adapter housing: Physical damage or ageing may cause cracks in the connection piece.
• Damaged sealing surfaces: Scratches, corrosion or deformation may prevent the joint from sealing correctly.
• Loose coolant connection: Damaged retaining components may affect the security of the connected pipe or hose.
• Deteriorated sealing ring: A worn or displaced seal may allow coolant to escape even when the adapter itself remains intact.
• Coolant leakage after servicing: Incorrect installation or disturbed seals may cause leakage following cooling system repairs.
• Repeated coolant loss under pressure: Small leaks may become more noticeable when the engine reaches operating temperature.
• Overheating during prolonged driving: Severe coolant loss may contribute to excessive engine temperatures.

Why Replacement Matters:
Replacing a defective coolant connection piece is important for maintaining the integrity of the engine cooling system.

A cracked, distorted or leaking adapter may allow coolant to escape, reducing the amount of coolant available to circulate through the engine.

Continued coolant loss can lead to overheating, particularly during demanding driving conditions or prolonged engine operation.

Excessive engine temperatures may damage seals, gaskets and other internal engine components.

Installing a Genuine Porsche replacement Coolant Connection Piece Adapter helps to:

• Restore a secure coolant connection: Replace a damaged or leaking connection piece.
• Prevent coolant leakage: Help maintain the correct seal between connected cooling system components.
• Maintain cooling system pressure: Support the intended operation of the pressurised cooling circuit.
• Preserve coolant circulation: Restore the correct passage between the associated coolant pipes.
• Support engine temperature control: Help maintain reliable cooling system operation.
• Reduce repeated coolant loss: Address leaks caused by a confirmed defective adapter.
• Reduce overheating risk: Repair a known coolant leak before significant fluid loss occurs.
• Restore correct pipe fitment: Maintain the specified connection geometry and component alignment.
• Support reliable engine operation: Help preserve cooling system performance during normal driving.
• Prevent further cooling system deterioration: Replace damaged components before leakage becomes more severe.
• Support engine refurbishment: Provide an original equipment component during cooling system or engine repairs.
• Preserve factory specifications: Maintain Porsche's intended coolant connection arrangement.
• Maintain Genuine Porsche quality: Use an original equipment replacement designed for the relevant engine.

Replacement is particularly recommended where inspection confirms cracking, damaged sealing surfaces, deformation, insecure attachment or persistent leakage originating from the adapter.

The associated seals, retaining components and connected coolant pipes should also be inspected during replacement.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9A110613100

The product you are viewing cross references to these numbers

Driveshaft Oil Seal 42x55x7 for PDK Gearbox

This PDK Driveshaft Oil Seal is a replacement gearbox sealing component for selected Porsche 718 Boxster, Cayman and 991.2 models equipped with a PDK transmission.

Fits:

• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
• Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
• Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
• Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
• Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
• Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
• Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
• Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
• Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
• Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
• Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
• Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
• Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
• Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
• Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
• Porsche 991.2 Speedster 4.0L (510Bhp) 2019
• Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
• Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

Diagram Ref No 21 

Fitted around the driveshaft output area, it helps prevent transmission oil escaping while allowing the rotating shaft to operate smoothly.

What Does It Do?

The driveshaft oil seal creates a seal between the rotating output shaft and the gearbox housing.

It keeps transmission oil inside the gearbox while helping prevent dirt and moisture entering around the shaft.

Why Is It Important?

A properly functioning seal helps maintain the correct gearbox oil level and protects internal transmission components.

A damaged seal may cause:

• Transmission oil leaks near the driveshaft
• Reduced gearbox oil levels
• Oil contamination around the output flange
• Increased risk of internal gearbox wear

Why Does It Fail?

Common causes include:

• Age-related seal hardening
• Wear from shaft rotation
• Heat and oil exposure
• Damage during driveshaft removal
• Worn or damaged shaft sealing surfaces

When Should It Be Replaced?

Replace the seal if transmission oil is leaking from the driveshaft output area or if the sealing lip is damaged or worn.

Replacement is also recommended when the seal is disturbed or damaged during gearbox repairs.

Checks & Installation

Inspect the output shaft sealing surface and gearbox housing before fitting.

Install the new seal squarely using suitable tools, taking care not to damage the sealing lip.

Check and correct the PDK transmission oil level using Porsche's specified procedure.

Key Features

• Driveshaft oil seal for selected PDK gearboxes
• Dimensions: 42 x 55 x 7mm
• Helps prevent transmission oil leakage
• Protects the gearbox against contamination
• Suitable for selected Porsche 718 and 991.2 models
• Replacement for worn or leaking output shaft seals

Porsche 718 & 991.2 PDK Driveshaft Oil Seals

The driveshaft oil seal is an important part of the Porsche PDK transmission sealing system, helping retain gearbox oil where the driveshaft exits the transmission housing.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9P1301607

The product you are viewing cross references to these numbers

Oil Sump for 8-Speed PDK Transmission

The PDK Transmission Oil Sump is a replacement gearbox oil pan for selected Porsche Panamera 971 and 976 models fitted with the 8-speed PDK dual-clutch transmission.

Fits:

• Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
• Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
• Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
• Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
• Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
• Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
• Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
• Porsche 971.1 Panamera 4S Diesel V8 4.0L 4WD (422 Hp) 2017-18
• Porsche 971.1 Panamera 4S Diesel 4.0L Twin-Turbo V8 Sport Turismo 2017-18
• Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
• Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
• Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
• Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
• Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
• Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
• Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD 2017-20
• Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD Executive 2017-20
• Porsche 971.2 Panamera 2.9L V6 2021-23
• Porsche 971.2 Panamera 4 2.9L V6 2021-23
• Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
• Porsche 971.2 Panamera 4S 2.9L V6 2021-23
• Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
• Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
• Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
• Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
• Porsche 971.2 Panamera 4S E-Hybrid Sport Turismo 2.9L V6 2021-23
• Porsche 971.2 Panamera GTS 4.0L V8 2021-23
• Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
• Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
• Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
• Porsche 971.2 Panamera Turbo S E-Hybrid 4.0L V8 2021-23
• Porsche 971.2 Panamera Turbo S E-Hybrid Sport Turismo 4.0L V8 2021-23
• Porsche 976 Panamera V6 2.9L 2023>>
• Porsche 976 Panamera 4 V6 2.9L 2023>>
• Porsche 976 Panamera 4 E-Hybrid V6 2.9L 2023>>
• Porsche 976 Panamera 4S E-Hybrid V6 2.9L 2023>>
• Porsche 976 Panamera GTS V8 4.0L 2023>>
• Porsche 976 Panamera Turbo E-Hybrid V8 4.0L 2023>>
• Porsche 976 Panamera Turbo S E-Hybrid V8 4.0L 2023>>

Diagram Ref No 25 

Located at the bottom of the gearbox, the sump contains transmission oil and helps maintain a sealed lubrication system for reliable gearbox operation.

What Does It Do?

The oil sump forms the lower reservoir of the PDK transmission, holding the gearbox oil used for lubrication, cooling and hydraulic operation.

It also provides a sealed enclosure that helps protect the transmission against oil loss and contamination.

Why Is It Important?

The PDK gearbox relies on the correct quantity of transmission oil to operate efficiently.

A damaged or leaking sump can cause:

• Transmission oil leaks
• Low gearbox oil levels
• Increased transmission temperatures
• Irregular or harsh gear changes
• Premature wear of internal gearbox components

Why Does It Fail?

Common causes include:

• Impact damage from road debris
• Corrosion or deterioration
• Damaged sealing surfaces
• Incorrect installation or overtightened fixings
• Damage during gearbox servicing

When Should It Be Replaced?

Replace the sump if it is cracked, distorted, badly corroded or leaking from a damaged sealing surface.

Inspect the sump during PDK transmission servicing, particularly if gearbox oil leaks are present.

Checks & Installation

Inspect the sump mounting surface, fixings and sealing components before installation.

Use the correct Porsche-approved transmission oil and follow the specified filling, temperature and oil-level checking procedures.

Installation by a Porsche transmission specialist is recommended.

Key Features

• Replacement 8-speed PDK transmission oil sump
• Forms the lower gearbox oil reservoir
• Helps maintain a sealed transmission oil system
• Suitable for gearbox servicing and repairs
• Replacement for damaged or leaking oil pans

Porsche Panamera 971 / 976 PDK Gearbox Oil Sumps & Transmission Parts

The Porsche Panamera 8-speed PDK transmission requires a properly sealed oil sump to retain gearbox fluid and support reliable lubrication, cooling and hydraulic operation.

The transmission oil sump provides a replacement option for selected Porsche Panamera 971 and 976 models when the original gearbox oil pan becomes damaged or develops a leak.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9A731716500

The product you are viewing cross references to these numbers

PDK Clutch Coupling

The PDK Clutch Coupling is a replacement transmission component for Porsche 991 turbo and turbo S models fitted with the 7-speed PDK dual-clutch gearbox.

Fits:

• Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
• Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
• Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
• Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
• Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
• Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19

Diagram Ref No 1 

It forms part of the clutch assembly responsible for transferring engine power through the transmission, helping maintain smooth gear engagement and efficient power delivery.

What Does It Do?

The PDK clutch coupling assembly helps transfer engine torque through the dual-clutch transmission.

The PDK system uses two clutches to manage alternating gear sets, allowing rapid gear changes with minimal interruption to power delivery.

Why Is It Important?

A correctly functioning clutch assembly is essential for smooth gear engagement and reliable transmission performance.

A worn or damaged coupling may contribute to:

• Jerking or shuddering during acceleration
• Delayed clutch engagement
• Slipping under load
• Irregular gear changes
• Transmission warning messages

These symptoms can also result from other gearbox faults.

Why Does It Fail?

Possible causes include:

• Normal wear over time
• Repeated high-load operation
• Excessive transmission temperatures
• Contaminated or deteriorated gearbox oil
• Internal mechanical damage

When Should It Be Replaced?

Replacement may be required when:

• Diagnostic testing confirms a clutch coupling fault
• Excessive clutch slip or wear is identified
• Internal clutch components are damaged
• A transmission rebuild requires replacement of the coupling assembly

Always diagnose the PDK gearbox before replacing clutch components.

Checks & Installation

Inspect the clutch assembly and related transmission components for wear or damage.

Installation should be carried out by a Porsche PDK transmission specialist using the correct workshop procedures.

Transmission oil servicing, diagnostic checks and clutch adaptation procedures may be required after fitting.

Key Features

• Replacement PDK clutch coupling kit
• Designed for selected Porsche 991 turbo and turbo S models
• Supports engine torque transfer
• Helps maintain smooth clutch engagement
• Suitable for specialist PDK gearbox repairs
• Replacement for worn or damaged clutch components

Porsche 991 Turbo PDK Clutch Kits & Transmission Repair Parts

The Porsche 991 Turbo PDK gearbox uses a dual-clutch system to deliver rapid gear changes and efficient power transfer.

The clutch coupling kit provides a replacement component for selected Porsche 991.1 and 991.2 turbo and turbo S transmissions, helping restore correct clutch operation when the original assembly becomes worn or damaged.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9G111605355

The product you are viewing cross references to these numbers

PDK Valve Body - PTV Plus

The PDK Valve Body PTV Plus is a replacement hydraulic control unit for selected Porsche 991 models fitted with the 7-speed PDK dual-clutch gearbox.

Fits:

• Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
• Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
• Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
• Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
• Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
• Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
• Porsche 991.1 R 4.0L (500 Bhp) 2016
• Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
• Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
• Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
• Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
• Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
• Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
• Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
• Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
• Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
• Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
• Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
• Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19

Diagram Ref No 11 

It regulates transmission oil pressure to control clutch engagement and gear selection, helping maintain smooth, precise and responsive gear changes.

Confirm compatibility using the vehicle VIN and Porsche parts catalogue before ordering. Not suitable for manual transmissions.

What Does It Do?

The PDK valve body directs pressurised transmission oil through internal hydraulic passages to operate the gearbox clutches and gear selection mechanisms.

Working with the electronic transmission control system, it helps deliver rapid, consistent gear changes.

What Is PTV Plus?

Porsche Torque Vectoring Plus combines selective rear-wheel braking with an electronically controlled rear differential lock to improve traction, stability and cornering performance.

The 9G131701535 valve body is specified for compatible PDK gearboxes used with this configuration. It is not a standalone PTV Plus differential control unit.

Why Is It Important?

A correctly functioning valve body is essential for reliable PDK operation.

A faulty unit may cause:

• Harsh or delayed gear changes
• Jerking or hesitation during acceleration
• Difficulty selecting Drive or Reverse
• Irregular clutch engagement
• Hydraulic pressure faults
• Gearbox warning messages

Why Does It Fail?

Common causes include:

• Contaminated or deteriorated transmission oil
• Blocked hydraulic passages
• Worn or sticking internal valves
• Hydraulic pressure regulation problems
• Electrical or solenoid faults

When Should It Be Replaced?

Replacement may be necessary when diagnostic testing confirms a valve body fault, hydraulic pressure problems are traced to the unit or internal damage is identified.

Always investigate other possible transmission faults before replacing the valve body.

Checks & Installation

Check gearbox fault codes, transmission oil condition and hydraulic pressure before installation.

Replacement should be carried out by a Porsche PDK specialist. Transmission fluid servicing, diagnostic checks and gearbox adaptation procedures may be required after fitting.

Key Features

• Replacement PDK hydraulic valve body
• For compatible PTV Plus / option 221 transmissions
• Controls hydraulic pressure and gear selection
• Supports smooth clutch engagement
• Suitable for selected Porsche 991 Carrera, Turbo and GT models
• Replacement for a confirmed faulty control unit

Porsche 991 PDK Valve Bodies & PTV Plus Transmission Parts

The Porsche PDK valve body is an essential transmission component, controlling hydraulic pressure, clutch engagement and gear selection.

The 9G131701535 hydraulic control unit is designed for selected Porsche 991.1 and 991.2 Carrera models with PTV Plus option 221, together with compatible 991 Turbo, GT3 and GT3 RS PDK transmissions.

Replacing a faulty valve body can help restore correct gearbox operation and consistent gear changes.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9G131701535

The product you are viewing cross references to these numbers

Driveshaft Flange, Rear.

The Genuine Porsche Rear Driveshaft Flange is an original equipment drivetrain component designed for selected Porsche 911 Turbo (930) models equipped with the applicable manual gearbox and differential assembly.

Fits:

• Porsche 911 1978-1983 (Turbo)
• Porsche 911 1984-1986 (Turbo)
• Porsche 911 1975-1977 3.0L Turbo (930)  

Diagram Ref No 13

Manufactured to Porsche's original equipment specifications, this driveshaft flange forms part of the rear transmission output arrangement, providing the connection between the gearbox differential and the rear driveshaft.

The Porsche 930 Turbo's engine delivers substantial torque through the gearbox and differential to the rear wheels. The driveshaft flange is a critical part of this connection, allowing rotational force to pass from the differential output to the driveshaft's inner constant velocity (CV) joint.

A correctly fitted flange helps maintain secure driveshaft engagement, correct alignment and reliable transmission of engine torque during acceleration, deceleration and normal driving.

The flange must withstand repeated changes in rotational loading, including the increased drivetrain demands associated with turbocharged engine performance.

Over time, an original flange may become worn or damaged because of repeated torque loading, corrosion, incorrect assembly, loose CV joint fasteners or damage during transmission servicing.

Worn splines, damaged mounting threads or distorted mating surfaces can compromise the connection between the differential output and driveshaft.

This may contribute to excessive drivetrain play, knocking noises, vibration or insecure CV joint mounting.

Damage to the flange's sealing surface may also contribute to gearbox oil leakage around the differential output.

Replacing a worn or defective driveshaft flange with a Genuine Porsche component helps restore the original drivetrain connection, maintain correct torque transmission and preserve the factory transmission assembly.

Ideal for gearbox repairs, differential servicing, driveshaft maintenance and classic Porsche restoration projects, this Genuine Porsche Rear Driveshaft Flange provides an original equipment replacement for compatible Porsche 930 Turbo applications.

What This Product Does:
The rear driveshaft flange is fitted to the output side of the gearbox differential.

Its primary function is to connect the transmission output to the rear driveshaft assembly, allowing engine torque to be transmitted to the driven wheels.

During operation, engine power passes through the clutch and gearbox into the differential.

The differential distributes rotational force through its output flanges to the left and right rear driveshafts.

Each driveshaft then transfers torque to the corresponding rear wheel hub.

The driveshaft flange provides the mounting and rotational connection required for this process.

Its main functions include:

• Transmitting engine torque: Transfers rotational force from the differential output to the rear driveshaft.
• Connecting the inner CV joint: Provides the appropriate mounting interface for the driveshaft's inner constant velocity joint.
• Supporting rear-wheel drive: Enables power from the transmission to reach the rear wheels.
• Maintaining correct driveshaft positioning: Supports the intended alignment of the driveshaft relative to the gearbox.
• Providing secure mechanical attachment: Allows the CV joint to be fastened to the transmission output.
• Supporting smooth power delivery: Maintains a stable mechanical connection during acceleration and deceleration.
• Maintaining differential output engagement: Works with the gearbox output mechanism to transmit rotational movement.
• Supporting gearbox oil sealing: Provides the appropriate rotating surface associated with the differential output sealing arrangement.
• Withstanding drivetrain loading: Operates under the repeated torsional forces generated by the engine.
• Preserving factory drivetrain geometry: Maintains the original Porsche output flange configuration for the correct gearbox application.

The driveshaft flange is separate from the complete driveshaft, CV joint, differential and wheel hub.

Symptoms Of Wear Or Failure:
The rear driveshaft flange is subjected to repeated torque loading, vibration and mechanical stress.

Although designed for long service life, wear or physical damage can affect its connection to the transmission and driveshaft.

Common symptoms of a worn or damaged driveshaft flange include:

• Clunking during acceleration: Excessive movement at the flange or CV joint connection may produce knocking noises when engine torque is applied.
• Clunking during deceleration: Wear may become noticeable when the drivetrain changes from acceleration to engine braking.
• Drivetrain vibration: A distorted or incorrectly centred flange may contribute to vibration while driving.
• Excessive rotational play: Worn spline engagement or retaining components may allow unwanted movement.
• Damaged splines: Excessive wear or mechanical damage can compromise torque transmission.
• Loose CV joint mounting: Damaged mounting points or loose fasteners may allow movement between the flange and driveshaft.
• Stripped mounting threads: Damaged bolt threads may prevent the CV joint from being secured correctly.
• Cracked or fractured flange: Severe loading or previous mechanical damage may weaken the component.
• Corroded mounting surfaces: Corrosion can affect the condition of the CV joint mounting interface.
• Distorted flange face: A damaged mounting surface may prevent the CV joint from seating correctly.
• Gearbox oil leakage: Wear or damage around the output sealing surface may contribute to lubricant escaping.
• Repeated loosening of driveshaft bolts: Incorrect fasteners, damaged mounting faces or improper tightening may compromise secure attachment.
• Visible fretting marks: Movement between connected components may produce abnormal wear around the flange face.
• Damaged retaining hardware: Worn or incorrectly fitted retaining parts may affect flange positioning.
• Unusual metallic noises: Excessive movement within the connection may produce knocking or rattling.
• Loss of drive: Severe failure of the flange or its connection may interrupt torque transfer to the affected driveshaft.

Why Replacement Matters:

Replacing a damaged driveshaft flange is important for maintaining a secure connection between the Porsche 930 Turbo's gearbox differential and rear driveshaft.

A worn flange may allow unwanted movement within the drivetrain, placing additional stress on the CV joint, driveshaft fasteners and gearbox output components.

If the splines, mounting threads or flange face become severely damaged, the driveshaft may no longer be securely connected.

Continued driving with a defective flange can contribute to further drivetrain deterioration and, in severe cases, loss of drive.

Installing a Genuine Porsche replacement Rear Driveshaft Flange helps to:

• Restore reliable torque transmission: Reinstate the original mechanical connection between the gearbox and driveshaft.
• Maintain secure CV joint attachment: Restore the correct mounting interface for the inner driveshaft joint.
• Reduce drivetrain play: Replace worn or damaged components that allow excessive movement.
• Improve drivetrain stability: Maintain correct output flange positioning and alignment.
• Reduce unwanted knocking: Address noises caused by a confirmed defective flange.
• Protect the CV joint: Reduce additional stress resulting from incorrect seating or excessive movement.
• Prevent further mounting damage: Replace damaged threads or mating surfaces before deterioration worsens.
• Support gearbox oil sealing: Restore the appropriate flange sealing surface where wear is contributing to leakage.
• Maintain differential output engagement: Preserve the intended mechanical connection to the transmission.
• Support gearbox rebuilding: Provide an original equipment component during transmission refurbishment.
• Preserve factory specifications: Maintain the original flange design for the applicable Porsche drivetrain.
• Support classic Porsche restoration: Restore worn or damaged original transmission components.
• Maintain Genuine Porsche quality: Use a factory-specified replacement rather than an unverified alternative.

Replacement is particularly recommended when inspection confirms damaged splines, cracks, excessive wear, distorted mounting surfaces or stripped fastening points.

The inner CV joint, output shaft seal, driveshaft mounting bolts and gearbox differential should also be inspected during replacement.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

93033223200

The product you are viewing cross references to these numbers

Threaded Sleeve. 

The Genuine Porsche Threaded Sleeve (Part Number: 91160931000) is a small but important electrical connection component used within the ignition lead and spark plug connector assemblies of selected classic Porsche models.
Sold Each.
x4 Required Per Car.

Fits:

• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93
• Porsche 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) RS 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97
• Porsche 993 (911) TURBO 1994-96
• Porsche 993 (911) GT2 1994-97
• Porsche 993 (911) TURBO S 1994-97
• Porsche 924 2.0L 1980-85
• Porsche 924S 2.5L 1986-87
• Porsche 924S 2.5L 1988
• Porsche 944 2.5L 8V 1982-87
• Porsche 944 Turbo 2.5L 8V 1985-88
• Porsche 944 Turbo 2.5L 8V 1989-91
• Porsche 944 Turbo S 2.5L 8V 1988
• Porsche 928S2 4.7L 1984-86  

Diagram Ref No 28

Manufactured as an original equipment Porsche replacement part, this threaded sleeve provides a mechanical and electrical connection within the high-voltage ignition cable assembly.

It is associated with the spark plug connector and ignition lead termination, helping maintain a secure connection so that ignition voltage can pass through the lead assembly towards the spark plug.

The component is listed in Porsche's engine electrical and ignition system diagrams for several classic models, including the Porsche 924, 928, 944, 964 and 993.

Although small in size, the threaded sleeve plays a useful role in maintaining the integrity of the ignition lead connection.

The ignition system must deliver high-voltage electrical pulses reliably from the ignition source to the spark plugs. Any weakness in the electrical connections can increase resistance, interrupt current flow or contribute to intermittent ignition performance.

Over time, the threaded sleeve may become damaged through corrosion, repeated removal, incorrect installation or deterioration of the surrounding ignition lead components.

A damaged or loose connection may contribute to poor ignition performance, particularly when the engine is operating under load or in damp conditions.

Replacing a worn or defective threaded sleeve with a Genuine Porsche component helps restore a secure ignition lead connection, maintain electrical continuity and support reliable engine operation.

This part is particularly relevant during spark plug lead repairs, ignition connector replacement, engine servicing and classic Porsche restoration projects.

What This Product Does:
The threaded sleeve is an electrical connector component used within the ignition lead assembly.

Its primary function is to provide a threaded mechanical connection and conductive interface between compatible ignition cable and spark plug connector components.

During engine operation, the ignition system generates high-voltage electrical pulses that travel through the ignition leads to the spark plugs.

These pulses must pass through secure electrical connections before reaching the spark plug electrodes.

A properly fitted threaded sleeve helps maintain a reliable connection within the ignition lead termination.

Its main functions include:

• Connecting ignition components: Provides the appropriate threaded connection within the ignition lead and spark plug connector assembly.
• Maintaining electrical continuity: Helps establish a conductive path for ignition voltage.
• Securing the ignition lead connection: Supports correct attachment of compatible cable-end components.
• Supporting spark plug operation: Helps ensure high-voltage pulses reach the spark plug through the intended connection.
• Maintaining connector integrity: Reduces the likelihood of unwanted movement within the correctly assembled connection.
• Supporting reliable ignition performance: Helps prevent interruptions caused by a loose or damaged electrical contact.
• Preserving original ignition lead construction: Maintains the factory-specified connector arrangement.
• Supporting ignition cable repairs: Allows an individual connection component to be replaced where the surrounding lead remains serviceable.
• Maintaining compatibility with the original connector: Provides the specified connection interface for applicable Porsche ignition assemblies.
• Supporting long-term electrical reliability: Helps preserve a secure mechanical and electrical connection.

Symptoms Of Wear Or Failure:
The threaded sleeve is a relatively simple component without moving parts, but its condition can affect the quality of the ignition lead connection.

Ageing, corrosion, mechanical damage or repeated removal may weaken the threaded or conductive surfaces.

Common symptoms of a worn or damaged threaded sleeve include:

• Intermittent engine misfire: An unreliable electrical connection may occasionally interrupt ignition voltage delivery.
• Rough engine idle: Poor ignition continuity may contribute to uneven combustion.
• Hesitation during acceleration: An intermittent ignition connection may become more noticeable under engine load.
• Reduced engine responsiveness: Weak or inconsistent ignition performance may affect throttle response.
• Difficult starting: A severely compromised connection may prevent the affected spark plug from firing consistently.
• Loose spark plug connector: Damaged threads may prevent the connector assembly from fastening securely.
• Corroded metal surfaces: Oxidation may compromise the electrical contact.
• Damaged or stripped threads: Mechanical damage may prevent correct assembly.
• Visible connector deterioration: Wear or deformation may become apparent during ignition lead inspection.
• Intermittent electrical continuity: Resistance measurements may reveal an unstable connection when the assembly is moved.
• Increased electrical resistance: Poor contact may add resistance to the ignition circuit.
• Engine misfire in damp conditions: Moisture can aggravate weaknesses in already deteriorated ignition components.
• Connector separation during servicing: A damaged sleeve may no longer retain the associated parts correctly.
• Poor ignition lead fitment: The connector may not seat or assemble as intended.
• Repeated ignition problems after plug replacement: A defective ignition lead connection may remain faulty even when the spark plug is new.

Why Replacement Matters:
Replacing a defective threaded sleeve helps maintain the integrity of the ignition lead assembly.

A loose, corroded or damaged sleeve may prevent the ignition cable and spark plug connector from forming a reliable connection.

If the connection becomes intermittent, ignition voltage may not reach the spark plug consistently, potentially causing rough running, hesitation or misfires.

Continued operation with an unreliable ignition connection can also make fault diagnosis more difficult, especially on older vehicles with multiple ageing ignition components.

Installing a Genuine Porsche replacement Threaded Sleeve helps to:

• Restore secure ignition lead attachment: Replace damaged or worn threaded connections.
• Maintain electrical continuity: Help ensure reliable transfer of ignition voltage through the connector assembly.
• Reduce intermittent ignition faults: Address poor contact caused by a confirmed defective sleeve.
• Support smooth engine operation: Help restore consistent ignition performance where connector damage is responsible.
• Improve starting reliability: Address starting difficulties related to an unreliable ignition lead connection.
• Prevent connector loosening: Restore the intended mechanical retention of the associated components.
• Replace corroded electrical contacts: Renew a conductive connection affected by deterioration.
• Support ignition lead refurbishment: Replace an individual damaged part without unnecessarily changing unrelated components.
• Preserve the original ignition design: Maintain Porsche's specified connection arrangement.
• Support preventative maintenance: Address visible connector deterioration before complete failure occurs.
• Help maintain engine reliability: Restore the intended ignition connection when the surrounding assembly remains serviceable.
• Support classic Porsche restoration: Provide a Genuine Porsche component for original-style ignition system repairs.

Replacement is recommended when the sleeve is visibly corroded, has damaged threads, cannot be securely fitted or fails an appropriate electrical continuity inspection.

Where the ignition cable or spark plug connector is also damaged, replacing the sleeve alone may not provide a complete repair.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91160931000

The product you are viewing cross references to these numbers

Banjo Bolt.

The Genuine Porsche Banjo Bolt (Part Number: 90135553101) is an original equipment hydraulic brake system component designed for selected classic Porsche models, including the Porsche 356, early 911 and 914.
Sold Each.
x2 Required Per Car.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 356B 1959-63
• Porsche 356C 1963-65
• Porsche 914 (1970-1976)  

Diagram Ref No 27

This specialised hollow bolt is used to secure a banjo-style brake line fitting to the appropriate brake caliper or wheel cylinder. Unlike a conventional solid bolt, it contains an internal passage that allows hydraulic brake fluid to flow through the connection.

Manufactured to Porsche's original equipment specifications, the banjo bolt provides both mechanical fastening and a hydraulic fluid passage within the braking system.

When the driver presses the brake pedal, the master cylinder generates hydraulic pressure that travels through the brake lines to the relevant brake calipers or wheel cylinders.

The banjo bolt allows this pressurised fluid to pass through the connection while holding the banjo fitting securely in position.

When installed with the correct sealing washers and tightened to the specified torque, the assembly helps maintain a leak-free hydraulic connection.

Although a relatively small component, the banjo bolt performs an essential function in the braking system.

Over time, the original bolt may become damaged through corrosion, overtightening, repeated removal, cross-threading or incorrect installation. The internal fluid passage may also become obstructed by contamination.

Damaged threads, distorted sealing surfaces or excessive corrosion can compromise the connection and potentially cause brake fluid leakage.

Loss of hydraulic fluid or pressure can affect braking performance and represents a significant safety concern.

Replacing a damaged or defective banjo bolt with a Genuine Porsche component helps restore secure brake line attachment, maintain hydraulic system integrity and support reliable braking operation.

Ideal for classic Porsche brake repairs, caliper refurbishment, wheel cylinder servicing and restoration projects, this Genuine Porsche Banjo Bolt provides a factory-specified replacement for compatible applications.

What This Product Does:
The banjo bolt is a hollow hydraulic fitting used to connect brake pipework to the appropriate braking component.

Its primary functions are to secure the banjo fitting mechanically and allow pressurised brake fluid to pass through the connection.

When the brake pedal is depressed, hydraulic pressure is generated by the master cylinder and transmitted through the brake fluid.

At the banjo connection, fluid passes through the bolt's internal drilling and into the connected brake caliper or wheel cylinder.

The bolt and its sealing washers must maintain the connection without allowing brake fluid to escape.

Its main functions include:

• Securing the brake line connection: Holds the banjo fitting in position against the connected brake component.
• Allowing brake fluid flow: Provides an internal passage for hydraulic brake fluid.
• Maintaining hydraulic pressure: Helps preserve the sealed brake circuit when correctly installed.
• Supporting braking performance: Allows pressure to reach the relevant brake caliper or wheel cylinder.
• Providing a secure mechanical connection: Maintains the attachment between the banjo fitting and braking component.
• Supporting hydraulic sealing: Works with the specified sealing washers to prevent leakage.
• Withstanding braking pressure: Operates under repeated hydraulic pressure changes.
• Maintaining original brake system configuration: Preserves the factory-style connection arrangement.
• Supporting brake system servicing: Allows damaged or corroded fittings to be replaced.
• Preserving component compatibility: Provides the specified fitting arrangement for compatible original Porsche brake components.

Symptoms Of Wear Or Failure:
A banjo bolt does not normally wear through movement, but it may become damaged through age, corrosion, mechanical stress or incorrect servicing.

Common signs of a damaged or defective banjo bolt include:

• Brake fluid leakage: Fluid may escape around the banjo fitting or bolt connection.
• Wetness around the connection: Visible brake fluid may collect around the caliper or wheel cylinder.
• Falling brake fluid level: A leaking connection may cause the master cylinder reservoir level to decrease.
• Soft or spongy brake pedal: Fluid loss and air entering the hydraulic circuit may affect pedal feel.
• Excessive brake pedal travel: A significant hydraulic fault may result in increased pedal movement.
• Reduced braking effectiveness: Severe fluid loss or pressure loss can compromise braking performance.
• Damaged bolt threads: Stripped or distorted threads may prevent secure installation.
• Cross-threading: Incorrect installation may damage both the bolt and the receiving component.
• Visible corrosion: Rust or surface deterioration may weaken the fitting.
• Pitting around sealing surfaces: Corrosion or damage may prevent the sealing washers from seating correctly.
• Rounded bolt head: Previous servicing damage may make removal or correct tightening difficult.
• Cracked or distorted bolt: Excessive tightening or mechanical damage may compromise the component.
• Blocked internal passage: Contamination may restrict brake fluid flow.
• Persistent leakage after servicing: Incorrect washers, damaged sealing surfaces or improper installation may prevent a reliable seal.
• Inability to tighten correctly: Damaged threads or incorrect bolt dimensions may prevent proper fastening.

Why Replacement Matters:
Replacing a defective banjo bolt is important for maintaining the safety and reliability of the vehicle's hydraulic braking system.

A damaged bolt may no longer provide secure mechanical attachment or a properly sealed passage for brake fluid.

If the connection leaks, hydraulic pressure may be lost and air may enter the system, potentially reducing braking performance.

Continued operation with a damaged banjo bolt may also worsen damage to the associated brake fitting or caliper threads.

Installing a Genuine Porsche replacement Banjo Bolt helps to:

• Restore secure brake line attachment: Replace a damaged or unreliable fastening component.
• Maintain hydraulic system integrity: Support a correctly sealed brake fluid connection.
• Prevent brake fluid leakage: Address leaks caused by a confirmed defective bolt.
• Restore reliable fluid flow: Replace a bolt with a damaged or obstructed internal passage.
• Maintain effective braking: Support proper hydraulic pressure delivery to the connected component.
• Reduce the risk of sudden connection failure: Replace cracked, severely corroded or damaged hardware.
• Prevent further thread damage: Renew damaged fittings before associated components are affected.
• Support brake caliper servicing: Provide an original equipment fitting during caliper repairs.
• Support wheel cylinder refurbishment: Restore the correct connection on compatible drum brake assemblies.
• Maintain original specifications: Preserve Porsche's intended banjo fitting arrangement.
• Support classic Porsche restoration: Replace deteriorated original brake hardware.
• Maintain Genuine Porsche quality: Use an original equipment replacement for a safety-critical component.

Replacement is recommended when the bolt is cracked, severely corroded, cross-threaded, distorted or unable to provide a secure hydraulic connection.

Where leakage originates from the sealing washers rather than the bolt itself, the correct replacement washers may resolve the issue, provided the bolt and mating surfaces remain serviceable.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90135553101

The product you are viewing cross references to these numbers

Bellows for Differential Locking Slave Cylinder
The Genuine Porsche Differential Locking Slave Cylinder Bellows (Part Number: 92833205105) is an original equipment protective seal designed for Porsche 928 models equipped with Porsche Sperr Differential (PSD) and Porsche 911 (964) Carrera 4 models with a differential locking system. Also known as the PSD Slave Bellows Seal, this flexible protective component fits around the differential locking slave cylinder actuator, helping protect the mechanism from dirt, moisture and external contamination.

Fits:
Porsche 928 S4 5.0 V8 1990–1991 4-speed automatic  A2816+ (A28.16)
Porsche 928 GT 5.0 V8 1990–1991 5-speed manual  G2855+ (G28.55) 
 * with PR:221 (M221) - Porsche electronically controlled limited-slip differential, known as PSD (Porsche Sperrdifferential)

Porsche 928 GTS 5.4 V8 1992–1995 5-speed manual G2857 (G28.57) 928
Porsche 928 GTS 5.4 V8 1992–1995 4-speed automatic  A2818 (A28.18) 

Porsche 911 (964)  1989–1994
 * Application: Differential locking slave cylinder protective bellows

Diagram ref no 

Manufactured to Porsche's original specifications, it provides precise fitment and reliable protection for the differential locking mechanism, making it an ideal replacement during differential or transmission maintenance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

92833205105

The product you are viewing cross references to these numbers

Glove Compartment Restraining Strap, LHD.

The Genuine Porsche Glove Compartment Restraining Strap, Left-Hand Drive (Part Number: 91155217601) is an original equipment interior trim component designed for selected classic Porsche 911 and 930 Turbo models.

Fits:

• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 911 1978-1989 3.3L Turbo (930)  

Diagram Ref No 3

Located within the glove compartment assembly, the restraining strap helps control and limit the movement of the glovebox lid when it is opened.

The strap forms part of the glove compartment's supporting hardware, preventing the lid from opening beyond its intended position and reducing unnecessary strain on the hinges and surrounding dashboard components.

Manufactured to Porsche's original equipment specification, this component helps maintain the original operation and appearance of the glove compartment.

The glovebox lid is opened and closed frequently during normal vehicle use. Its restraining mechanism must therefore withstand repeated movement while keeping the lid in the intended open position.

Over time, the original strap may become worn, stretched, frayed, cracked or damaged through age and repeated use.

A defective restraining strap can allow the glove compartment lid to drop further than intended, potentially placing additional stress on the hinges, mounting points or surrounding trim.

A missing or detached strap may also cause the lid to hang unevenly or open abruptly.

Replacing a worn or damaged restraining strap with a Genuine Porsche component helps restore controlled glovebox operation, maintain the intended opening position and preserve the originality of the interior.

Ideal for dashboard repairs, glove compartment refurbishment and classic Porsche restoration, this Genuine Porsche restraining strap provides a factory-specified replacement for compatible left-hand-drive vehicles.

What This Product Does:
The glove compartment restraining strap is a supporting component within the dashboard's glovebox assembly.

Its primary function is to limit how far the glove compartment lid opens and help support it when fully lowered.

When the glovebox is opened, the lid moves downwards on its hinges. The restraining strap prevents it from travelling beyond its designed opening range.

This helps protect the lid and related components from unnecessary mechanical stress.

Its main functions include:

• Limiting glovebox opening movement: Prevents the lid from opening further than its intended position.
• Supporting the open glovebox lid: Helps maintain the correct resting position when the compartment is open.
• Protecting the hinges: Reduces the risk of excessive loading from uncontrolled lid movement.
• Maintaining correct lid positioning: Helps the glovebox open to its factory-designed angle.
• Preventing excessive downward movement: Restrains the lid before it drops too far.
• Protecting surrounding dashboard trim: Reduces the possibility of the lid contacting adjacent interior components.
• Supporting smooth operation: Helps the lid open in a controlled manner.
• Maintaining original glovebox functionality: Preserves the intended movement of the compartment lid.
• Supporting interior restoration: Reinstates the original-style restraining arrangement.
• Maintaining factory fitment: Provides the specified component for compatible left-hand-drive glove compartments.

The restraining strap is separate from the glovebox hinges, lock, latch and lid.

It does not lock the compartment closed. Its purpose is to control the lid's opening movement.

Symptoms Of Wear Or Failure:
The glove compartment restraining strap is exposed to repeated movement and mechanical loading.

Ageing, wear or damage to the strap or its attachment points may affect its ability to control the glovebox lid.

Common signs of a worn or damaged restraining strap include:

• Glovebox lid opening too far: The lid may drop below its intended opening position.
• Uncontrolled downward movement: The lid may fall abruptly when released.
• Broken or detached strap: The restraining component may no longer connect securely to the glovebox assembly.
• Visible fraying: Deterioration may weaken the strap material.
• Cracked or split material: Age-related damage may affect its strength.
• Excessive stretching: The strap may no longer limit the lid to the correct opening angle.
• Uneven glovebox lid positioning: A damaged restraining arrangement may allow the lid to hang incorrectly.
• Increased strain on the hinges: Excessive downward movement can place unnecessary load on the hinge mechanism.
• Loose mounting hardware: A damaged or insecure attachment may prevent the strap from functioning correctly.
• Damaged fixing points: Repeated loading may affect the connection between the strap and glovebox assembly.
• Interior rattling: A detached component or loose fitting may produce noises during driving.
• Visible deterioration: Discolouration, deformation or general ageing may indicate that the part requires inspection.
• Poor operation following dashboard repairs: Incorrect reassembly may leave the strap detached or improperly positioned.
• Missing restraining component: The glovebox may open without its intended movement limit.

Why Replacement Matters:
Replacing a defective restraining strap helps maintain the correct operation of the glove compartment.

A worn, broken or missing strap may allow the lid to open beyond its intended position, potentially increasing the load on the hinges and associated mounting points.

Continued use without a functioning restraint may cause unnecessary wear or damage to other glovebox components.

Installing a Genuine Porsche replacement restraining strap helps to:

• Restore controlled glovebox opening: Reinstate the intended limit of lid movement.
• Prevent excessive lid travel: Stop the glovebox from dropping further than designed.
• Protect the glovebox hinges: Reduce unnecessary stress caused by unsupported movement.
• Maintain correct lid positioning: Restore the factory-designed opening angle.
• Improve glovebox usability: Help the compartment open and remain supported as intended.
• Replace deteriorated material: Renew a frayed, cracked or stretched strap.
• Prevent further interior damage: Reduce the risk of excessive movement affecting surrounding components.
• Restore secure attachment: Replace damaged or detached restraining hardware.
• Maintain original interior functionality: Preserve Porsche's intended glove compartment arrangement.
• Support dashboard refurbishment: Complete repairs involving the glovebox lid or surrounding trim.
• Preserve classic Porsche originality: Use an original equipment component for interior restoration.
• Maintain Genuine Porsche quality: Fit the specified factory replacement rather than an unsuitable alternative.

Replacement is recommended when the strap is broken, stretched, visibly deteriorated or no longer limits the glovebox lid correctly.

If the mounting points or hinges are also damaged, these should be repaired or replaced as necessary.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91155217601

The product you are viewing cross references to these numbers

Screw Plug M10 X 1.

The Genuine Porsche Screw Plug M10 × 1 (Part Number: 9001240230A) is an original equipment threaded sealing component used within the turbocharger oil supply system of selected Porsche 964 Turbo models.

Fits:

• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93  

Diagram Ref No 15

Designed with an M10 × 1 metric thread, this screw plug closes a specified threaded opening within the turbocharger oil supply arrangement, helping maintain the integrity of the associated oil system.

The turbocharged Porsche flat-six engine relies on a controlled supply of engine oil to lubricate the turbocharger's internal shaft and bearing assembly. Correct oil supply and sealing are essential because the turbocharger operates at extremely high rotational speeds and elevated temperatures.

The screw plug forms part of the original turbocharger oil system assembly and is positioned alongside the associated oil pipes, banjo bolt and sealing components in Porsche's parts catalogue.

When correctly installed, the plug helps prevent oil escaping through its designated threaded opening, supporting the intended oil system configuration.

Manufactured to Porsche's original equipment specification, the component provides the correct thread size and fitment for the applicable installation.

During operation, the plug is exposed to engine vibration, heat and the operating conditions of the surrounding oil system.

Although designed for long service life, it may become damaged through corrosion, overtightening, incorrect installation, damaged threads or repeated removal during maintenance.

A damaged screw plug or compromised sealing interface may result in oil leakage around the associated connection.

If an oil leak develops near the turbocharger, escaping oil may contaminate surrounding engine components and potentially contact hot exhaust surfaces.

Replacing a worn or damaged screw plug with a Genuine Porsche component helps restore the specified threaded closure, maintain oil system integrity and support reliable turbocharger operation.

What This Product Does:
The screw plug is a threaded closure component fitted at a designated location within the turbocharger oil supply assembly.

Its primary function is to seal the corresponding threaded opening and prevent unwanted oil leakage.

The turbocharger oil supply system delivers engine oil to the turbocharger's internal bearing arrangement.

The associated pipework and connections must remain correctly sealed to maintain the intended oil circuit.

The screw plug closes its specified opening without providing an external hose or pipe connection.

Its main functions include:

• Sealing a threaded opening: Closes the designated M10 × 1 threaded port.
• Preventing oil leakage: Helps stop oil escaping through the closed connection.
• Maintaining oil system integrity: Supports the original turbocharger oil supply arrangement.
• Providing secure mechanical closure: Maintains the required threaded fastening.
• Supporting turbocharger lubrication: Helps preserve the integrity of the oil supply system serving the turbocharger.
• Maintaining factory configuration: Restores the specified original Porsche closure component.
• Supporting engine maintenance: Allows a damaged plug to be replaced during turbocharger oil system repairs.
• Providing correct thread compatibility: Matches the M10 × 1 threaded specification.
• Supporting reliable sealing: Works with the specified sealing arrangement at its installation location.
• Helping prevent oil contamination: Reduces the possibility of oil escaping onto adjacent components.

Symptoms Of Wear Or Failure:
Screw plugs are generally durable components without moving parts. However, mechanical damage, incorrect installation or deterioration of their sealing surfaces can compromise their operation.

Common signs of a damaged or defective screw plug include:

• Visible oil leakage: Engine oil may escape around the threaded connection.
• Oil residue near the plug: Damp or oily deposits may develop around the fitting.
• Oil drips: A significant leak may allow oil to collect beneath the affected engine area.
• Burning oil smell: Escaping oil may produce an odour if it reaches hot components.
• Smoke from oil contamination: Oil contacting hot exhaust surfaces may generate smoke.
• Damaged threads: Stripped or distorted threads may prevent secure installation.
• Cross-threading: Incorrect installation may damage the plug and its receiving threads.
• Loose plug: Incorrect tightening or damaged threads may compromise fastening.
• Corroded plug surface: Deterioration may affect the component's condition.
• Damaged sealing face: Scratches, pitting or distortion may prevent proper sealing.
• Rounded tool engagement: Previous servicing damage may make removal or tightening difficult.
• Cracked plug: Excessive mechanical stress may cause physical failure.
• Incorrect replacement plug: A component with an unsuitable thread pitch or length may not seat correctly.
• Persistent leakage after servicing: Incorrect installation or a damaged sealing interface may leave the connection leaking.
• Visible damage to the receiving port: The surrounding threaded opening may be damaged even when the plug appears serviceable.

Why Replacement Matters:
Replacing a defective screw plug helps maintain a secure, properly sealed connection within the turbocharger oil supply assembly.

A damaged plug may allow oil to escape, leading to contamination of surrounding components and potentially reducing the reliability of the oil system.

An oil leak near hot turbocharger or exhaust components also presents an important maintenance concern.

If the plug's threads are damaged, continued tightening or reuse may worsen damage to the receiving component.

Installing a Genuine Porsche replacement Screw Plug helps to:

• Restore the threaded seal: Replace a defective closure component.
• Prevent unwanted oil leakage: Address leakage caused by a confirmed damaged plug.
• Maintain oil system integrity: Support the original turbocharger oil supply assembly.
• Restore secure fitment: Replace a plug with damaged or stripped threads.
• Reduce oil contamination: Help prevent oil escaping onto neighbouring engine components.
• Support turbocharger servicing: Provide replacement hardware during oil system maintenance.
• Prevent further thread damage: Replace unsuitable or damaged components before reassembly.
• Maintain the correct thread specification: Preserve the original M10 × 1 connection.
• Support engine restoration: Renew damaged original components during classic Porsche repairs.
• Preserve factory construction: Maintain the specified Porsche oil system arrangement.
• Support long-term reliability: Restore a sound mechanical closure at the relevant connection.
• Maintain Genuine Porsche quality: Use an original equipment replacement rather than an unverified substitute.

Replacement is recommended when the plug is cracked, distorted, corroded, cross-threaded or unable to provide a secure seal.

If leakage is caused by the receiving component or the associated sealing arrangement, replacing the plug alone may not resolve the fault.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9001240230A

The product you are viewing cross references to these numbers

Clamp SP 68/20.

The Genuine Porsche Clamp SP 68/20 (Part Number: 9995122460C) is an original equipment fastening component designed for selected classic Porsche 911, 930 Turbo and 964 heating and exhaust heat exchanger assemblies.
Sold Each.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930)
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93 

 
Diagram Ref No 20

This specialised clamp is used to secure the connection between the engine's heat exchanger outlet and the associated hot-air hose, elbow or adapter.

The air-cooled Porsche 911 heating system uses heat exchangers surrounding sections of the exhaust system to warm air before directing it through the vehicle's heating ducts and into the passenger compartment.

The Clamp SP 68/20 helps maintain a secure connection within this heated-air delivery arrangement.

Manufactured to Porsche's original equipment specification, the clamp is designed to provide the appropriate fastening arrangement for the specified duct connection.

During operation, the heating system is exposed to elevated temperatures, vibration and repeated thermal expansion and contraction.

A correctly fitted clamp helps prevent the duct connection from loosening, reducing unwanted hot-air leakage and maintaining the intended flow of heated air through the system.

Over time, original clamps may become corroded, distorted or weakened by repeated exposure to heat and moisture.

Damaged threads, a fractured band or deteriorated tightening hardware can prevent the clamp from securing the connection correctly.

A loose clamp may allow the heating hose to move or become partially detached, leading to a reduction in heating efficiency, unwanted rattling or warm air escaping before it reaches the cabin.

Replacing a worn or damaged clamp with a Genuine Porsche component helps restore secure duct attachment, maintain the original heating arrangement and support reliable cabin heating performance.

What This Product Does:
The Clamp SP 68/20 is a mechanical fastening component used within the engine heat exchanger's hot-air ducting arrangement.

Its primary function is to secure the specified heating hose or elbow to the associated heat exchanger connection.

When the engine is running, the heating system uses air warmed by the heat exchangers.

This heated air travels through a series of ducts, hoses and heater control components before reaching the cabin.

The clamp helps maintain the connection between two parts of this airflow circuit.

Its main functions include:

• Securing hot-air duct connections: Holds the specified heater hose or elbow firmly against its mating connection.
• Supporting cabin heating: Helps maintain the heated-air passage from the heat exchanger towards the passenger compartment.
• Reducing unwanted air leakage: Helps prevent warm air escaping through an inadequately secured joint.
• Maintaining correct hose positioning: Keeps the connected hose or adapter seated in its intended location.
• Reducing movement and vibration: Limits unwanted movement at the duct connection.
• Supporting heating efficiency: Helps ensure heated air follows its intended route.
• Maintaining original heating-system construction: Preserves the factory fastening arrangement.
• Providing secure mechanical retention: Holds the connection together under normal operating conditions.
• Supporting heater system repairs: Allows damaged or corroded fastening hardware to be renewed.
• Maintaining reliable duct attachment: Helps prevent the hose or elbow from becoming detached.

Symptoms Of Wear Or Failure:
The clamp operates in an area exposed to engine heat, road moisture, corrosion and vibration.

Although relatively simple in construction, prolonged service may affect its ability to maintain secure fastening.

Common signs of a worn or damaged clamp include:

• Reduced cabin heating performance: A loose hot-air connection may allow heated air to escape before reaching the passenger compartment.
• Weak airflow from heater outlets: A partially detached hose may reduce the amount of warm air reaching the heating system.
• Visible corrosion: Rust may weaken the clamp or prevent its tightening mechanism from operating correctly.
• Loose heater hose: The connected hose may move because the clamp no longer provides sufficient retention.
• Detached hot-air duct: A severely damaged or missing clamp may allow the hose or elbow to separate.
• Rattling near the heat exchanger: An insecure duct connection may produce vibration-related noises.
• Damaged clamp band: Cracking, splitting or physical distortion may affect fastening.
• Stripped tightening mechanism: Damaged threads may prevent the clamp from being tightened securely.
• Seized fastening hardware: Corrosion may prevent the clamp from loosening or tightening during maintenance.
• Distorted clamp shape: Excessive tightening or mechanical damage may prevent even contact around the connection.
• Visible gaps around the joint: The heater hose or adapter may no longer sit correctly.
• Repeated loosening: A weakened clamp may fail to maintain secure attachment.
• Abrasion marks: Movement between the hose and adjoining components may produce wear.
• Damaged hose end: An incorrectly fitted or overtightened clamp may deform the connected heater hose.
• Missing clamp: Previous repairs may have left the heating duct without its correct retaining component.

Why Replacement Matters:
Replacing a defective heating duct clamp is important for maintaining the correct connection between the heat exchanger and the cabin heating system.

A corroded, loose or distorted clamp may no longer provide sufficient fastening force.

This can allow the connected hose or elbow to move, leak heated air or become detached.

Continued operation with an insecure duct connection may reduce heating performance and contribute to wear of the associated hose or adapter.

Installing a Genuine Porsche replacement Clamp SP 68/20 helps to:

• Restore secure heater hose attachment: Replace damaged fastening hardware.
• Maintain heated-air delivery: Help preserve the intended airflow route from the heat exchanger.
• Reduce unwanted hot-air leakage: Address air loss caused by a loose connection.
• Support cabin heating performance: Maintain the connection needed for effective heating.
• Prevent hose detachment: Restore the intended mechanical retention.
• Reduce rattling and vibration: Secure components that have become loose.
• Replace corroded hardware: Renew ageing clamps affected by heat and road moisture.
• Protect neighbouring components: Help prevent movement and abrasion caused by an insecure duct.
• Support heat exchanger servicing: Provide the correct clamp when associated hoses or adapters are removed.
• Maintain original fitment: Preserve Porsche's intended heater duct connection.
• Support classic Porsche restoration: Replace damaged or missing original hardware.
• Maintain Genuine Porsche quality: Use a factory-specified replacement for the relevant connection.

Replacement is recommended when the clamp is cracked, heavily corroded, distorted, missing or unable to tighten securely.

If the connected heater hose or heat exchanger outlet is damaged, replacing the clamp alone may not restore the connection.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9995122460C

The product you are viewing cross references to these numbers

Screw Socket. 

The Genuine Porsche Screw Socket (Part Number: 96410770523) is an original equipment threaded fitting associated with the engine crankcase and lubrication-system components of the Porsche 911 (964) generation.

Fits:

• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93  

Diagram Ref No 52

Also referred to as a crankcase screwed socket or engine oil-system threaded connection, this component is intended to provide the specified mechanical connection within its applicable engine assembly.

The closely related Porsche reference 96410770522 is illustrated in the original Porsche 964 crankcase parts catalogue for the M64.50 engine, fitted to the Porsche 911 Turbo 3.6.

The exact reference 96410770523 is independently listed as a Porsche screwed socket, although its direct interchangeability with the earlier version requires confirmation.

The Porsche 964 Turbo 3.6 uses an air-cooled, turbocharged flat-six engine equipped with a dry-sump lubrication system.

This system relies on correctly assembled oil passages, fittings, seals and connecting components to maintain reliable oil circulation throughout the engine.

Threaded sockets used within the crankcase assembly provide specified connection points for the surrounding engine components.

Correct dimensions, thread engagement and installation are essential because an unsuitable fitting may not seat correctly or may damage the surrounding engine housing.

During normal operation, the engine assembly is exposed to vibration, mechanical loading, temperature changes and engine oil.

Over time, a threaded socket may become damaged through corrosion, overtightening, cross-threading or incorrect removal during engine servicing.

Damaged threads or sealing surfaces can compromise the security of the connection and may contribute to oil leakage if the fitting forms part of a sealed oil circuit.

Replacing a damaged screwed socket with the correctly specified Genuine Porsche component helps restore the original assembly arrangement, maintain secure fastening and support reliable engine operation.

Ideal for Porsche engine repairs, crankcase refurbishment and classic 911 Turbo restoration, this Genuine Porsche Screw Socket provides an original equipment replacement where its exact specification is required.

What This Product Does:
The screw socket is a threaded connection component associated with the relevant engine assembly.

Its primary purpose is to provide the specified interface for the corresponding mating component.

Depending on the engine configuration, crankcase screw sockets may serve as connection fittings within the lubrication system or provide a secure threaded mounting arrangement.

The exact function of 96410770523 must be confirmed against the applicable Porsche engine diagram.

Its general functions include:

• Providing a threaded connection: Creates the specified mechanical interface for the mating component.
• Supporting secure component attachment: Helps maintain the correct connection within the engine assembly.
• Maintaining original assembly geometry: Provides the intended dimensions and positioning.
• Supporting the crankcase arrangement: Forms part of the engine's original connection hardware.
• Maintaining correct thread engagement: Allows the corresponding component to be fitted securely.
• Supporting oil-system sealing where applicable: Helps maintain a sealed connection when used with the correct sealing arrangement.
• Withstanding engine operating conditions: Functions within an assembly exposed to heat and vibration.
• Supporting engine refurbishment: Allows damaged original fittings to be replaced during repairs.
• Preserving factory construction: Maintains the original Porsche component configuration.
• Providing serviceable connection hardware: Restores a damaged fitting without necessarily replacing the surrounding assembly.

Symptoms Of Wear Or Failure:
The screw socket is a passive mechanical component without moving parts.

Deterioration is generally associated with physical damage, incorrect installation, corrosion or repeated removal during servicing.

Common signs of a damaged screw socket include:

• Damaged threads: Stripped or worn threads may prevent secure engagement.
• Cross-threading: Incorrect installation may damage the fitting and surrounding component.
• Loose connection: A damaged socket may no longer retain its mating component correctly.
• Visible corrosion: Surface deterioration may affect the fitting's condition.
• Cracked socket body: Excessive tightening or mechanical stress may cause cracking.
• Distorted shape: Previous repairs or incorrect tools may deform the fitting.
• Damaged sealing surface: Scratches, pitting or deformation may compromise a sealed joint.
• Oil seepage: Where used in a sealed oil connection, damaged surfaces may contribute to leakage.
• Oil residue around the connection: A defective fitting or associated seal may allow oil to accumulate nearby.
• Difficulty removing the fitting: Corrosion or damaged tool-engagement surfaces may complicate servicing.
• Inability to tighten securely: Damaged threads may prevent the connection from reaching the specified fastening condition.
• Repeated loosening: A damaged mating connection may not retain the fitting reliably.
• Incorrect component fitment: An unsuitable socket may prevent proper assembly.
• Visible damage following engine repairs: Previous removal or installation may have compromised the component.
• Damage to the receiving threads: A defective fitting may be found alongside damage to the crankcase or mating component.

Why Replacement Matters:
Replacing a damaged screw socket helps maintain the correct mechanical connection within the engine assembly.

A fitting with stripped threads, cracks or distorted surfaces may no longer secure its mating component as intended.

Continued use of an unsuitable fitting may worsen damage to the surrounding threads or associated engine components.

Where the fitting is part of a sealed oil connection, deterioration can also compromise the integrity of that joint.

Installing a correctly specified Genuine Porsche replacement Screw Socket helps to:

• Restore secure thread engagement: Replace damaged or worn connection hardware.
• Maintain correct component fitment: Preserve the intended interface with the mating part.
• Replace damaged mounting hardware: Renew a cracked, corroded or distorted socket.
• Support oil-system sealing where applicable: Restore the correct connection arrangement when leakage originates from the fitting.
• Prevent further thread damage: Address unsuitable or damaged hardware before reassembly.
• Maintain engine assembly integrity: Reinstate the specified crankcase connection.
• Support engine refurbishment: Provide replacement hardware during engine repairs.
• Preserve original dimensions: Use the appropriate Porsche reference.
• Reduce future servicing difficulties: Replace seized or mechanically damaged fittings.
• Maintain factory specifications: Preserve the original engine hardware arrangement.
• Support classic Porsche restoration: Replace damaged components with Genuine Porsche parts.
• Support long-term reliability: Restore a sound connection within the engine assembly.

Replacement is recommended when the socket is cracked, corroded, cross-threaded, distorted or unable to provide secure attachment.

If the surrounding engine housing is damaged, further repair may be required before installing the replacement.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96410770523

The product you are viewing cross references to these numbers

Transmission Casing Pipe / Tube. 

The Genuine Porsche Transmission Casing Pipe / Tube (Part Number: 91530113303) is an original equipment transmission component associated with the gearbox casing and internal oil system of selected classic Porsche 911 and 930 models.

Fits:

• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930)  

Diagram Ref No 10

Also referred to as a gearbox oil tube, transmission casing pipe or internal transmission oil pipe, this component forms part of the transmission housing assembly.

The Porsche 915 manual gearbox uses transmission oil to lubricate its gears, bearings, shafts and other moving components. Maintaining the intended oil distribution within the transmission is essential for reliable operation and long-term mechanical protection.

The transmission casing pipe forms part of the original internal gearbox arrangement and is intended to provide an oil passage at its designated location.

Manufactured to Porsche's original equipment specification, the pipe is designed to match the corresponding transmission casing configuration.

The component is associated with classic Porsche manual transmissions, particularly the 915 gearbox family, and is listed by specialist suppliers for selected 915 and 930 gearbox applications.

During normal operation, a manual transmission experiences continuous rotational movement, changes in torque and considerable mechanical loading.

Transmission oil provides lubrication between contacting components, reducing friction and helping manage heat generated during operation.

A correctly installed oil tube helps preserve the original gearbox oil-routing arrangement.

Although this is a relatively small and durable component, it may become damaged through corrosion, contamination, mechanical stress, incorrect installation or improper handling during gearbox rebuilding.

A bent, cracked, obstructed or incorrectly positioned tube may interfere with the internal oil passage it is intended to provide.

Replacing a damaged transmission casing pipe with a Genuine Porsche component helps restore the specified gearbox assembly configuration and supports reliable transmission lubrication.

Ideal for Porsche 915 gearbox rebuilding, transmission casing repairs and classic Porsche restoration, this Genuine Porsche Transmission Casing Pipe provides an original equipment replacement for compatible applications.

What This Product Does:
The transmission casing pipe is a component associated with the gearbox's internal oil system.

Its primary function is to maintain the intended oil passage within the corresponding gearbox casing assembly.

The Porsche 915 transmission relies on the correct quantity and specification of gearbox oil to lubricate the internal moving components.

As the transmission operates, its gears and shafts rotate under load, generating friction and heat.

Oil is distributed within the gearbox through the transmission's designed lubrication arrangement.

The casing pipe forms part of that arrangement at its specified location.

Its functions include:

• Providing an internal oil passage: Forms part of the designated gearbox oil-routing arrangement.
• Supporting transmission lubrication: Helps maintain the original configuration used for gearbox oil distribution.
• Maintaining correct oil flow routing: Provides the intended passage within the compatible transmission casing.
• Supporting gearbox reliability: Helps preserve the lubrication arrangements required by the transmission.
• Maintaining original transmission construction: Restores the specified Porsche casing component.
• Supporting gearbox refurbishment: Provides a replacement tube during transmission repairs or rebuilding.
• Maintaining correct component positioning: Fits within its designated location in the gearbox casing.
• Reducing the risk of obstruction: Replaces a damaged or blocked tube that may interfere with the intended oil passage.
• Supporting long-term gearbox operation: Helps maintain the specified internal transmission arrangement.
• Preserving factory specification: Provides the original Porsche component reference for applicable transmissions.

Symptoms Of Wear Or Failure:
The transmission casing pipe does not contain moving parts and is generally not a routine service item.

Damage is more likely to be identified during gearbox dismantling, internal inspection or transmission rebuilding.

Common signs of a defective transmission casing pipe include:

• Visible cracking: A fracture may compromise the tube's condition.
• Bent or distorted tube: Mechanical damage may affect the intended oil passage or installation position.
• Blocked internal passage: Debris or contamination may restrict the tube.
• Corrosion: Surface deterioration may weaken the component.
• Damaged pipe ends: Incorrect removal or installation may deform the openings.
• Loose fitment: A damaged mounting or connection arrangement may prevent the tube from being correctly secured.
• Incorrect positioning: Improper installation may prevent the tube from occupying its intended location.
• Impact damage: Contact with tools or gearbox components during dismantling may damage the pipe.
• Wear marks: Unintended contact with surrounding components may cause abrasion.
• Contaminated oil passage: Metal particles or other debris may become trapped inside the tube.
• Missing tube: A previously rebuilt gearbox may lack the specified component.
• Incorrect replacement part: A tube of the wrong dimensions may not fit or function as intended.
• Signs of inadequate lubrication: Abnormal internal wear may justify inspection of the gearbox's complete lubrication arrangement.
• Abnormal gearbox noise: Internal lubrication problems can contribute to noise, although this is not a specific symptom of pipe failure.
• Premature gearbox component wear: Restricted lubrication may contribute to deterioration if the affected components do not receive the intended oil supply.

Why Replacement Matters:
Replacing a damaged transmission casing pipe helps maintain the original construction and oil-routing arrangement of the gearbox.

A bent, fractured or obstructed tube may no longer provide its intended internal passage.

If the gearbox's lubrication arrangement is compromised, surrounding mechanical components may be exposed to additional friction or wear.

Because the transmission operates under continuous rotational and torsional loading, maintaining its intended lubrication system is important for long-term reliability.

Installing a Genuine Porsche replacement Transmission Casing Pipe helps to:

• Restore the original oil passage: Replace a damaged or obstructed component.
• Maintain factory gearbox construction: Preserve the specified internal transmission arrangement.
• Support reliable lubrication: Maintain the intended oil-routing configuration.
• Replace damaged components: Renew cracked, bent or corroded tubing.
• Prevent incorrect assembly: Fit the specified component during gearbox rebuilding.
• Support transmission refurbishment: Complete repairs involving the gearbox casing.
• Reduce the risk of further deterioration: Address a known defect before returning the gearbox to service.
• Maintain correct component positioning: Restore the intended fit within the transmission casing.
• Preserve classic Porsche originality: Use the corresponding factory replacement component.
• Support long-term gearbox reliability: Maintain the transmission's designed internal arrangement.
• Avoid unsuitable substitutes: Replace the component with the correct Porsche reference rather than unverified tubing.
• Support professional gearbox repairs: Provide the appropriate part for a transmission rebuild.

Replacement is recommended when the tube is bent, cracked, blocked, severely corroded, missing or damaged during dismantling.

If internal transmission wear has already occurred, replacing the pipe alone will not repair the affected gears, bearings or other components.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91530113303

The product you are viewing cross references to these numbers

Vent Hose.

The Genuine Porsche Vent Hose (Part Number: 91120191501) is an original equipment fuel tank ventilation component designed for selected classic Porsche 911 and 930 Turbo models.

Fits:

• Porsche 911 1981-1983 3.0L / SC
• Porsche 911 1981-1983 3.3L Turbo (930)  

Diagram Ref No 8

Also described as a fuel tank breather hose, this component forms part of the vehicle's fuel tank ventilation system, allowing air and fuel vapours to move through the designated ventilation circuit.

The fuel tank ventilation system is essential for managing pressure changes within the fuel tank as fuel is consumed, temperatures change and petrol vapour develops.

Rather than allowing fuel vapours to escape through uncontrolled openings, the ventilation arrangement routes them through the appropriate hoses, expansion chambers and associated components.

The Genuine Porsche Vent Hose provides a flexible connection within this system, helping maintain the intended flow of air and fuel vapour.

The hose is associated with the fuel tank ventilation assemblies used on selected Porsche 911 SC and 930 Turbo vehicles.

During normal operation, the fuel level changes as the engine consumes petrol. At the same time, variations in ambient temperature can cause fuel vapour to expand or contract.

The ventilation system accommodates these changes, helping prevent excessive pressure or vacuum from developing within the fuel tank.

A correctly installed breather hose helps maintain the integrity of the ventilation circuit and reduces the risk of vapour escaping through damaged connections.

Over time, the original hose may deteriorate because of age, fuel vapour exposure, heat, vibration or repeated movement.

The material can become hardened, brittle, cracked or split, while the ends may lose their ability to form a reliable connection with the associated fittings.

A damaged vent hose can allow petrol vapours to escape, producing an unpleasant fuel smell around the vehicle. Depending on the location and nature of the damage, it may also affect the operation of the tank ventilation system.

Replacing a worn or damaged hose with a Genuine Porsche component helps restore the original ventilation arrangement, maintain secure vapour connections and support reliable fuel tank pressure management.

Ideal for classic Porsche fuel system maintenance, tank ventilation repairs and restoration projects, this Genuine Porsche Vent Hose provides a factory-specified replacement for compatible applications.

What This Product Does:
The vent hose is part of the fuel tank breathing and vapour management system.

Its primary function is to provide a passage through which air and petrol vapours can move between the designated components of the fuel tank ventilation circuit.

As fuel is consumed, air must be able to enter or move through the ventilation arrangement to prevent excessive vacuum developing inside the tank.

When fuel temperature rises, petrol vapour can expand and increase pressure inside the tank.

The ventilation system accommodates these pressure changes through its associated hoses, expansion tanks and vapour management components.

The vent hose supports this process by maintaining the required connection within the system.

Its main functions include:

• Allowing fuel tank ventilation: Provides a passage for air and fuel vapour within the specified ventilation circuit.
• Supporting pressure equalisation: Helps prevent excessive pressure differences from developing in the fuel tank.
• Accommodating fuel vapour expansion: Allows vapour movement as temperature and fuel conditions change.
• Supporting fuel tank breathing: Helps maintain the intended ventilation arrangement as petrol is consumed.
• Connecting ventilation components: Provides a flexible connection between associated pipes, fittings or expansion chambers.
• Limiting unwanted vapour escape: Helps contain fuel vapours within the designated ventilation pathway.
• Maintaining correct system routing: Preserves the factory-designed arrangement of ventilation hoses.
• Supporting reliable fuel tank operation: Helps prevent ventilation restrictions caused by a damaged or collapsed hose.
• Accommodating normal vehicle movement: Provides flexibility between connected components.
• Supporting fuel system maintenance: Allows deteriorated sections of the ventilation circuit to be renewed.

The vent hose does not pump fuel or deliver pressurised petrol to the engine.

It is a fuel tank ventilation component, separate from the main fuel supply and return hoses.

Symptoms Of Wear Or Failure:
Fuel tank ventilation hoses are exposed to petrol vapour, temperature changes and long periods of service.

On older Porsche vehicles, ageing rubber and deteriorated hose connections can cause ventilation faults.

Common signs and symptoms of a worn or damaged vent hose include:

• Petrol smell around the vehicle: Escaping fuel vapour may produce a noticeable petrol odour.
• Fuel smell in the luggage compartment: A leaking ventilation hose in the front luggage compartment area may allow vapours to accumulate.
• Fuel smell after refuelling: Vapour leakage may become more noticeable when the fuel tank is full.
• Fuel smell during warm weather: Higher temperatures can increase vapour generation and expose weaknesses in the ventilation circuit.
• Cracked hose material: Ageing may cause visible splits or cracks in the hose surface.
• Hardened or brittle hose: Rubber deterioration can reduce flexibility and sealing performance.
• Loose hose connections: Worn hose ends may no longer grip the connecting fittings securely.
• Split hose ends: Repeated removal or prolonged ageing may cause cracking around the connection points.
• Collapsed hose sections: Deformation may restrict the intended movement of air or vapour.
• Blocked ventilation passage: Debris, deterioration or incorrect hose routing may obstruct the circuit.
• Excessive pressure release when opening the fuel cap: Abnormal tank pressure may indicate a ventilation restriction.
• Fuel tank vacuum symptoms: A severely restricted ventilation system may interfere with normal fuel tank breathing.
• Visible hose swelling: Chemical exposure or incompatible hose materials may affect the hose's shape.
• Disconnected ventilation hose: A detached hose may leave the circuit open to the surrounding area.
• Deteriorated hose clamps: Corroded or loose retaining components may compromise the connection.
• Repeated fuel vapour odours after repairs: An incorrectly routed or inadequately secured hose may continue to leak vapour.

Why Replacement Matters:
Replacing a deteriorated fuel tank vent hose is important for maintaining the original fuel tank ventilation arrangement.

A cracked or split hose may allow petrol vapours to escape into areas where they should not be present.

A collapsed or obstructed hose may also interfere with the fuel tank's ability to manage normal pressure changes.

On classic Porsche vehicles, original rubber components may have experienced several decades of heat exposure, vibration and contact with fuel vapours.

Even where a hose appears intact, its ends may have hardened and become less effective at sealing against the connecting fittings.

Installing a Genuine Porsche replacement Vent Hose helps to:

• Restore fuel tank ventilation: Renew a damaged connection within the breathing system.
• Reduce unwanted petrol odours: Address vapour leakage caused by a confirmed defective hose.
• Support pressure equalisation: Maintain the intended movement of air and fuel vapour.
• Prevent unwanted vapour escape: Restore the appropriate connection between ventilation components.
• Replace deteriorated rubber: Renew cracked, brittle or hardened hose material.
• Maintain secure hose connections: Restore proper attachment to the associated fittings.
• Prevent ventilation restrictions: Replace collapsed or obstructed hose sections.
• Support fuel tank operation: Maintain the correct breathing arrangement during normal fuel consumption.
• Preserve factory hose routing: Restore Porsche's intended ventilation layout.
• Support fuel system refurbishment: Replace ageing components during tank or expansion chamber servicing.
• Improve long-term reliability: Reduce the likelihood of further hose deterioration.
• Support classic Porsche restoration: Maintain the original fuel tank ventilation system.
• Maintain Genuine Porsche specifications: Use the specified original equipment reference rather than an unverified generic hose.

Replacement is particularly recommended when the hose is visibly cracked, hardened, split, swollen, detached or otherwise damaged.

The surrounding ventilation hoses, expansion tanks, fittings and retaining clamps should also be inspected during replacement.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91120191501

The product you are viewing cross references to these numbers