Porsche

Water Drain Tube.

The Porsche Water Drain Tube 99611029700 is a genuine Porsche replacement drain pipe used within the air-cleaner and water-trap assembly on selected Porsche 986 Boxster models.

Fits:

• Porsche Boxster 986 2.5L 1997-99
• Porsche Boxster 986 2.7L 1999-02
• Porsche Boxster 986 2.7L 2003-04  

Diagram Ref No 18

Located in the engine air-intake system, the tube provides a controlled route for water collected by the air-cleaner water trap to drain away rather than remaining around the intake assembly.

Its role is particularly important in helping keep accumulated rainwater and moisture away from the air-filter element and intake tract.

Manufactured as a genuine Porsche component, it provides the correct dimensions and fit for the original air-cleaner installation.

What This Product Does:
The air-cleaner system must provide the engine with clean intake air while helping prevent unwanted water and debris from reaching the filter and intake tract.

The water trap separates collected moisture from the incoming air path, while the drain tube allows this water to escape.

The water drain tube helps:

• Drain collected water from the air-cleaner water trap
• Prevent standing water around the air-filter assembly
• Reduce the risk of the air-filter element becoming unnecessarily wet
• Direct moisture away from the intake system
• Maintain the intended operation of the Porsche air-cleaner assembly
• Keep the original water-management system complete
• Replace a split, blocked, hardened or missing original drain pipe

Symptoms Of Wear Or Failure:
The drain tube can deteriorate through age, heat exposure, contamination and repeated temperature cycling.

Possible symptoms include:

• Visible cracks or splits in the tube
• Hardened or brittle material
• Tube becoming loose or detached
• Distorted or collapsed tubing
• Blockage from dirt or debris
• Water remaining in the air-cleaner water trap
• Moisture or standing water around the airbox
• Damp air-filter element
• Water staining around the air-cleaner assembly
• Incorrect drainage into the surrounding engine compartment
• Missing drain tube during inspection

Because this component is primarily a drainage part, deterioration may not immediately produce an engine warning light or obvious drivability problem.

Why Replacement Matters:
Although relatively small, the drain tube forms part of Porsche's original intake water-management system.

A damaged or obstructed tube can prevent collected water from draining correctly.

Continued use with a failed drain tube may contribute to:

• Persistent moisture around the air cleaner
• Premature air-filter deterioration
• Unwanted water accumulation
• Corrosion or staining of surrounding components
• Reduced effectiveness of the air-cleaner water trap
• Increased risk of moisture progressing further into the intake system

Replacing a deteriorated tube restores the intended drainage route and helps protect the air-cleaner assembly from unnecessary moisture accumulation.

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

99611029700

The product you are viewing cross references to these numbers

Coolant Supply Hose.

The Porsche Coolant Supply Hose 9A110666001 is a genuine Porsche replacement water hose used within the engine cooling system on selected Porsche 997-generation 911 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
• Porsche 997 MKII GT2 RS 2011-13  

Diagram Ref No 15

The hose forms part of the engine-side coolant pipework and carries pressurised coolant through the water-pipe assembly, helping maintain stable engine temperature under normal driving and high-load operating conditions.

What This Product Does:
The engine cooling system circulates coolant through the engine, radiators, thermostat and associated pipes to remove excess heat.

The coolant supply hose forms part of this sealed, pressurised circuit.

Its functions include:

• Carrying engine coolant through the cooling system
• Maintaining consistent coolant circulation
• Supporting stable engine operating temperature
• Connecting associated water-pipe and engine cooling components
• Containing coolant under pressure
• Helping prevent coolant loss
• Supporting correct thermostat and water-pump operation
• Maintaining the factory Porsche cooling-system layout

Although relatively small, a sound supply hose is essential for keeping the cooling circuit sealed and dependable.

Symptoms Of Wear Or Failure:
Coolant hoses deteriorate over time through heat, pressure, vibration and chemical exposure.

Possible signs of failure include:

• Visible coolant leakage
• Pink, white or coloured coolant residue around the hose
• Dampness around hose connections
• Cracks in the hose surface
• Splitting around the ends
• Swollen or bulging hose sections
• Hose becoming unusually soft
• Hose becoming hard or brittle
• Coolant smell around the engine
• Falling coolant level
• Frequent need to top up coolant
• Low-coolant warning
• Engine-temperature fluctuations
• Engine overheating
• Steam from the engine area

A hose may also deteriorate internally without severe external cracking, so condition should be assessed carefully during cooling-system maintenance.

Why Replacement Matters:
A deteriorated coolant hose can eventually leak or rupture.

Because the cooling system operates under pressure, even a small split can lead to rapid coolant loss once the engine reaches operating temperature.

Continued driving with a failed hose may result in:

• Loss of cooling-system pressure
• Reduced coolant circulation
• Engine overheating
• Turbocharger heat-management problems
• Damage to seals and gaskets
• Cylinder-head damage
• Severe engine damage in extreme cases
• Vehicle breakdown

Replacing an aged or leaking hose restores the integrity of the cooling circuit and reduces the risk of sudden coolant loss.

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

9A110666001

The product you are viewing cross references to these numbers

Water Hose.

The Genuine Porsche Water Hose is a replacement coolant hose used within the Tiptronic automatic-transmission ATF cooler circuit on selected Porsche 911 models.

Fits:

• Porsche 996 C2 3.6L 2002-2005
• Porsche 996 C4 3.6L 2002-2005
• Porsche 996 C4S 3.6L 2002-2005
• Porsche 996 TURBO 2000-05
• Porsche 996 GT2 2001-05
• Porsche 997 MK1 Carrera 2 3.6L 2005-08
• Porsche 997 MK1 Carrera 2S 3.8L 2005-08
• Porsche 997 MK1 Carrera 4 3.6L 2005-08
• Porsche 997 MK1 Carrera 4S 3.8L 2005-08
• Porsche 997 MK1 TURBO 2007-09
• Porsche 997 MK1 GT2 2007-09  

Diagram Ref No 16

Although positioned within the transmission oil cooler system, this hose carries engine coolant rather than automatic transmission fluid. Coolant circulates through the ATF heat exchanger, allowing heat to be transferred between the transmission fluid and the engine cooling system.

Maintaining this coolant flow helps the Tiptronic transmission reach and remain within an appropriate operating temperature range during normal driving, motorway use and higher-load conditions.

As the hose ages, repeated heat cycles, cooling-system pressure and exposure to coolant can cause the rubber to harden, swell, crack or leak. Replacing a deteriorated hose helps restore a sealed cooling circuit and reliable coolant flow through the ATF heat exchanger.

What This Product Does:
The water hose forms part of the coolant circuit serving the Tiptronic transmission heat exchanger.

It is designed to:

• Carry engine coolant through the ATF cooler circuit.
• Support transmission-fluid temperature regulation.
• Maintain coolant circulation through the heat exchanger.
• Help remove excess heat from the automatic transmission fluid.
• Help the transmission reach an appropriate operating temperature.
• Maintain cooling-system pressure.
• Prevent coolant loss when correctly sealed.
• Replace a cracked, hardened or leaking original hose.
• Support reliable Tiptronic transmission cooling.

Symptoms Of Wear Or Failure:
Possible symptoms include:

• Visible coolant leakage.
• Coolant dripping beneath the vehicle.
• Dampness around the hose or connections.
• Dried coolant residue around hose ends.
• Gradual loss of coolant.
• Coolant-level warning.
• Sweet coolant smell after driving.
• Hose becoming hard or brittle.
• Surface cracking.
• Swelling or bulging.
• Soft or spongy areas.
• Leakage when the engine reaches operating temperature.
• Cooling-system pressure loss.
• Engine temperature becoming unstable.
• ATF temperature increasing under heavy use if coolant circulation is compromised.

Why Replacement Matters:
Replacement may be appropriate when:

• Coolant leakage is confirmed.
• Dried coolant residue is visible.
• The hose is cracked.
• Rubber has become hard.
• The hose is swollen.
• Soft spots are present.
• Hose ends no longer seal correctly.
• The hose has been damaged during transmission or cooling-system work.
• The ATF cooler is being replaced or serviced.
• The cooling system is undergoing preventative refurbishment.
• The original hose is old and its condition is uncertain.

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

99630771113

The product you are viewing cross references to these numbers

A/C Compressor Spacer Sleeve. 
The Genuine Porsche A/C Compressor Spacer Sleeve (Part Number 99612610253) is a precision-engineered mounting component designed to ensure correct positioning, alignment and secure installation of the air conditioning compressor within the engine assembly.

Fits:

• Porsche Boxster 987 2.7L 2005-08/08
• Porsche Boxster 987 S 3.2/3.4L 2005-08/08
• Porsche 996 C2 3.6L 2004-2005
• Porsche 996 C4 3.6L 2004-2005
• Porsche 996 C4S 3.6L 2004-2005
• Porsche 997 MK1 Carrera 2 3.6L 2005-08
• Porsche 997 MK1 Carrera 2S 3.8L 2005-08
• Porsche 997 MK1 Carrera 4 3.6L 2005-08
• Porsche 997 MK1 Carrera 4S 3.8L 2005-08  

Diagram Ref No 4

Manufactured to Porsche's original equipment specifications, this spacer sleeve maintains the correct distance between the A/C compressor and its mounting points, helping ensure that the compressor is securely attached and correctly aligned with the engine's auxiliary drive belt system.

Although relatively small, the compressor spacer sleeve plays an important role in maintaining the structural integrity of the air conditioning compressor installation.

The air conditioning compressor operates under continuous mechanical loads, engine vibration and temperature fluctuations. Correct mounting alignment is essential to prevent excessive stress on the compressor housing, mounting bolts and associated drive components.

Over time, a spacer sleeve may become damaged, distorted, corroded or lost during previous compressor repairs or replacement. An incorrectly fitted or missing spacer can affect compressor positioning, potentially leading to unwanted movement, vibration, mounting stress and accessory drive belt alignment problems.

Replacing a damaged or missing spacer sleeve with a Genuine Porsche component helps restore the correct factory mounting arrangement, supporting reliable compressor operation and protecting surrounding components.

Ideal for air conditioning compressor repairs, mounting bracket maintenance and replacement during A/C system servicing, this genuine replacement component provides original equipment fitment and dependable performance.

What This Product Does:
The A/C compressor spacer sleeve is a mechanical mounting component that helps maintain the correct installation geometry of the air conditioning compressor.

Its primary functions include:

• Maintains Correct Compressor Spacing: Establishes the specified distance between the air conditioning compressor and its mounting surfaces.
• Supports Accurate Compressor Alignment: Helps position the compressor correctly in relation to the engine and associated mounting components.
• Provides Mounting Bolt Support: Works with the compressor mounting hardware to maintain the correct installation arrangement.
• Helps Maintain Pulley Alignment: Supports correct positioning of the compressor pulley relative to the engine's auxiliary drive belt.
• Reduces Excessive Mounting Stress: Helps prevent incorrect clamping forces and unnecessary strain on the compressor housing and mounting points.
• Prevents Unwanted Compressor Movement: Contributes to a securely mounted compressor assembly when all associated hardware is correctly installed.
• Supports Stable Compressor Operation: Helps maintain a consistent mounting position despite normal engine vibration.
• Maintains Original Equipment Fitment: Ensures the compressor is installed using the correct factory-specified spacing arrangement.
• Protects Associated Components: Helps reduce the risk of mechanical interference and unnecessary wear caused by incorrect compressor positioning.

Symptoms Of Wear Or Failure:
The A/C compressor spacer sleeve is a non-moving component and does not normally experience the same wear as rotating or rubber components.

However, damage, corrosion, incorrect installation or missing mounting hardware can affect its performance.

Common symptoms of a damaged or missing compressor spacer sleeve include:

• Incorrect Compressor Alignment: The air conditioning compressor appears tilted or incorrectly positioned relative to its mounting bracket.
• Loose Compressor Mounting: The compressor may move or vibrate because the mounting assembly cannot be secured correctly.
• Visible Spacer Damage: The sleeve may show signs of crushing, deformation, cracking or physical deterioration.
• Damaged Mounting Hardware: Mounting bolts may become loose, incorrectly seated or difficult to tighten to the specified torque.
• Excessive Compressor Vibration: Unusual vibration may be transmitted through the compressor mounting assembly.
• Unusual Engine Bay Noises: Rattling, knocking or vibration-related noises may occur if the compressor is inadequately secured.
• Accessory Belt Misalignment: Incorrect compressor positioning may cause the drive belt to run unevenly across the pulley.
• Premature Drive Belt Wear: Abnormal pulley alignment may contribute to belt edge wear, fraying or deterioration.
• Belt Squealing or Chirping: Misalignment may produce unwanted belt noise during engine operation.
• Damage Around Mounting Points: Cracks or stress marks may appear around the compressor mounting lugs or supporting brackets.
• Missing Spacer Sleeve: Previous compressor replacement or servicing may have resulted in the original sleeve being misplaced or omitted.

Why Replacement Matters:
Replacing a damaged, distorted or missing compressor spacer sleeve helps ensure the air conditioning compressor remains correctly positioned and securely mounted to the engine.

Key Benefits of Replacement:

• Restores Correct Compressor Alignment: Helps return the compressor to its factory-specified mounting position.
• Maintains Secure Installation: Supports proper clamping of the compressor mounting hardware.
• Protects Compressor Mounting Points: Helps reduce excessive mechanical stress on the compressor housing and mounting brackets.
• Supports Correct Drive Belt Alignment: Helps maintain the intended relationship between the compressor pulley and auxiliary drive belt.
• Reduces Unwanted Vibration: Contributes to a stable compressor installation when all mounting components are in good condition.
• Helps Prevent Premature Belt Wear: Reduces the risk of alignment-related wear caused by incorrect compressor positioning.
• Protects Associated Components: Helps minimise unnecessary strain on mounting bolts, brackets and adjacent components.
• Genuine Porsche Quality: Manufactured to the original equipment specifications for the relevant application.
• Correct Original Equipment Fitment: Provides the required mounting dimensions without improvised spacers or modifications.
• Ideal During Compressor Replacement: Ensures the correct mounting arrangement is restored when installing a new or refurbished A/C compressor.
• Supports Long-Term Reliability: Helps preserve the mechanical integrity of the compressor mounting assembly.
• Cost-Effective Preventative Maintenance: Replacing a damaged spacer may help prevent more expensive repairs caused by mounting misalignment.

Although the compressor spacer sleeve is a small component, its correct installation is important for the reliability and mechanical stability of the air conditioning system.

A missing or incorrectly sized spacer can prevent the compressor from being secured as Porsche intended, potentially causing vibration, belt alignment issues and stress around the mounting points.

Replacing the component with a Genuine Porsche spacer sleeve helps restore the original mounting geometry and maintain the dependable operation of the compressor assembly.

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

99612610253

The product you are viewing cross references to these numbers

Genuine Porsche lower bonnet lock for the 997.2 911, 987.2 Boxster and both 987.1 and 987.2 Cayman. Identified as 'Lock lower part' in the supplied exploded diagrams, it is the body-mounted component of the front bonnet locking mechanism.

Fits

• Porsche 997.2 Carrera C2 3.6L 2009–12
• Porsche 997.2 Carrera C4 3.6L 2009–12
• Porsche 997.2 Carrera C2S 3.8L 2009–12
• Porsche 997.2 Carrera C4S 3.8L 2009–12
• Porsche 997.2 Turbo 2010–13
• Porsche 997.2 GT2 RS 2011–13
• Porsche 987.1 Cayman 2.7L 2006–08
• Porsche 987.1 Cayman S 3.4L 2005–08
• Porsche 987.2 Boxster 2.9L 2009–12
• Porsche 987.2 Boxster S 3.4L 2009–12
• Porsche 987.2 Cayman 2.9L and Cayman S / R 3.4L 2009–12

Confirm the vehicle's model, production year and engine specification before ordering.

What This Product Does

This lower mechanism engages the bonnet's upper locking component as the lid closes. Its mounting on the body provides the fixed catch needed for bonnet retention and normal release operation. Correct engagement depends on the condition and alignment of both locking components.

Functions

• Receives the matching upper bonnet lock.
• Holds the bonnet shut through mechanical engagement.
• Forms part of the bonnet closure and release system.

Technical Details

• Porsche genuine component, reference 99751105301.
• Location: Front; lower portion of the bonnet lock.
• Each supplied assembly diagram specifies one lower lock.
• 997.2 diagram coverage: Carrera 2009–12 and Turbo / GT2 RS 2010–13.
• 987 diagram coverage: 987C.1 Cayman 2006–08, 987.2 Boxster / Boxster S 2009–12 and 987C.2 Cayman 2009–12.
• The upper lock, micro switch and mounting hardware have separate entries in the diagrams.

Symptoms of Fault

• Inconsistent engagement when closing the bonnet.
• Sticking or irregular operation during release.
• A closed bonnet that moves or rattles.
• Visible corrosion, wear or damage around the catch.
• Poor engagement after damage to the lock or surrounding bodywork.

Why Replacement Matters

A damaged or deteriorated lower mechanism can prevent the upper and lower components from engaging correctly. Replacement addresses a confirmed lock fault and may be necessary during front-end body repairs. Check the upper catch, release components, micro switch and fasteners at the same time; alignment or cable faults should not be mistaken for failure of the lower lock.

FAQs

Which bonnet does this lock serve?
It is intended for the front bonnet, not a rear lid.

Is this a complete locking kit?
The identified product is the lower lock. Separate diagram entries cover the upper mechanism, micro switch and associated hardware; do not assume these are included.

How can I check suitability?
Use reference 99751105301 alongside the detailed applications above, and verify the vehicle identification number where necessary.

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

99751105301

The product you are viewing cross references to these numbers

Torsion bar cover gasket
The Genuine Porsche Torsion Bar Cover Gasket (Part Number: 90150475901) is an original equipment sealing component designed for classic Porsche 911, 912 and 930 models. This gasket fits between the rear torsion bar access cover and the vehicle body, creating a protective barrier against moisture, dirt and road debris. It helps protect the torsion bar housing and surrounding bodywork from contamination and corrosion.
Sold individually

Fits:
Porsche 911 1965-1968 2.0L / 912 SWB (F)

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

90150475901

The product you are viewing cross references to these numbers

Water Hose, Return. 

The Genuine Porsche Water Hose – Return is a replacement engine cooling-system hose for selected Porsche 911 997 Turbo models.

Fits:

• Porsche 997 MK1 TURBO 2007-09

Diagram Ref No 2

This hose forms part of the pressurised liquid-cooling circuit and carries coolant between the engine and the water-pump return pipe. Its job is to maintain a reliable, sealed route for coolant returning through the engine cooling system so that heat can be transferred away from the engine and dissipated through the radiators.

Because the hose operates continuously in a hot, pressurised environment, it is exposed to repeated thermal cycling, coolant chemicals, engine vibration and ageing. Over time, the rubber can harden, crack, swell or begin leaking around its connections.

Replacing a deteriorated return hose helps restore a sealed cooling circuit, maintain correct coolant circulation and reduce the risk of coolant loss and engine overheating.

What This Product Does:
The return hose carries engine coolant through the cooling system towards the water-pump return circuit.

It is designed to:

• Carry coolant between the engine and water-pump return pipe.
• Maintain continuous coolant circulation.
• Keep the cooling circuit sealed.
• Withstand cooling-system pressure.
• Withstand repeated high-temperature operation.
• Allow controlled movement between connected engine components.
• Help maintain stable engine temperature.
• Replace a leaking, cracked or hardened original hose.
• Prevent unnecessary coolant loss.

Symptoms Of Wear Or Failure:
Possible symptoms include:

• Visible coolant leakage.
• Coolant dripping beneath the vehicle.
• Dampness around the hose.
• Pink, white or coloured dried coolant residue.
• Coolant smell around the engine compartment.
• Gradual coolant-level loss.
• Coolant warning message.
• Hose becoming hard or brittle.
• Visible cracking.
• Swollen rubber.
• Soft or spongy hose sections.
• Leakage around hose connections.
• Steam from the engine area.
• Rising engine temperature.
• Temperature fluctuations.
• Cooling system requiring frequent topping up.

Why Replacement Matters:
Replacing a deteriorated return hose helps restore:

• Correct coolant circulation.
• Cooling-system sealing.
• Stable coolant level.
• Reliable water-pump return flow.
• Correct system pressure.
• Reduced risk of coolant loss.
• Stable engine operating temperature.
• Long-term cooling-system reliability.

Preventative replacement can be particularly worthwhile when other cooling-system work is already being carried out.

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

99710632972

The product you are viewing cross references to these numbers

Genuine Porsche black insert for the centre console in 964 and 993 models.

Fits

• Porsche 964 (911) 1989–94
• Porsche 964 (911) Carrera 2 1989–93
• Porsche 964 (911) Carrera 4 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) 1994–98
• Porsche 993 (911) Carrera 2 1994–97
• Porsche 993 (911) Carrera 4 1994–97
• Porsche 993 (911) RS 1994–97
• Porsche 993 (911) Carrera 2S 1994–97
• Porsche 993 (911) Carrera 4S 1994–97
• Porsche 993 (911) Turbo 1994–96
• Porsche 993 (911) GT2 1994–97
• Porsche 993 (911) Turbo S 1994–97

Diagram Ref No 28

What This Product Does

Positioned inside the console, the insert forms the lining of its storage area. It separates stored items from the underlying console surface and completes the recess when the previous lining has deteriorated or been lost.

Functions

• Provides a lining for the storage tray base.
• Separates loose contents from the console beneath.
• Reinstates the recess finish during interior refurbishment.

Technical Details

• Manufacturer: Porsche.
• Part number: 99355267500.
• Supplied diagram description: insert black.
• Installation area: centre console.
• Assembly quantity shown: 1.
• Referenced in both supplied 964 and 993 console diagrams.

Symptoms of Fault

• Absent lining leaves the tray base exposed.
• Visible splits, distortion or surface deterioration.
• Loose contents make contact noise within the recess.
• The storage compartment has an unfinished appearance.

Why Replacement Matters

Replacing an insert that has deteriorated or disappeared restores the lining between stored belongings and the console beneath. For an interior restoration, this genuine Porsche component also retains the specified black appearance. Inspect adjacent trim and fixings separately: a new insert will not repair damage elsewhere in the assembly.

FAQs

Does this include the surrounding console?
No; the product is the insert alone. Surrounding panels are separate components.

Which applications are recorded in the diagrams?
The internal references identify 964 console assemblies dated 1989–94 and 993 assemblies dated 1994–98. Use the detailed vehicle entries above when checking suitability.

What should I check before selecting it?
Match 99355267500 against your existing insert or vehicle parts information, then verify model year and console specification. Similar-looking interior pieces can differ in their fittings.

Before ordering, check compatibility with your vehicle’s model, year and engine.

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

99355267500

The product you are viewing cross references to these numbers

Water Hose Supply. 

The Porsche Water Hose Supply 99710650101 is a genuine replacement coolant supply hose designed for selected Porsche 997 performance models.

Fits:

• Porsche 997 MK1 TURBO 2007-09
• Porsche 997 MK1 GT3 / GT3 RS 2007-09
• Porsche 997 MK1 GT2 2007-09
• Porsche 997 MKII GT3 / GT3 RS 2010-11
• Porsche 997 MKII Turbo 2010-13
• Porsche 997 MKII GT2 RS 2011-13  

Diagram Ref No 9

Located on the right-hand side of the engine cooling circuit, the hose carries coolant from the supply pipe towards the engine, helping maintain continuous coolant circulation and stable operating temperatures.

Manufactured to Porsche specifications, this replacement restores the original hose routing, connections and sealing arrangement when the existing hose has become cracked, hardened, swollen or is leaking.

What This Product Does:
The engine cooling system continuously circulates coolant through the engine, radiators and associated pipework to absorb and dissipate heat.

This supply hose forms part of that circulation path and delivers coolant from the supply pipe into the engine cooling circuit.

Its main functions include:

• Carrying coolant towards the engine
• Maintaining continuous coolant circulation
• Helping maintain correct cooling-system pressure
• Supporting stable engine operating temperatures
• Providing a sealed connection between the coolant pipe and engine
• Helping prevent coolant loss
• Maintaining the original factory hose routing
• Supporting effective engine thermal management

The hose itself does not lower coolant temperature, but reliable coolant flow through it is essential for the cooling system to function correctly.

Symptoms Of Wear Or Failure:
Coolant hoses operate under continuous heat and pressure and can deteriorate as they age.

Common symptoms of a worn or failing coolant supply hose include:

• Visible coolant leakage
• Dampness around the hose or fittings
• Dried coolant residue around connection points
• Cracks or splits in the hose
• Rubber becoming hard or brittle
• Swelling or bulging sections
• Hose becoming excessively soft or spongy
• Damaged or loose hose connections
• Low coolant warning
• Repeated need to top up coolant
• Sweet coolant smell around the engine bay
• Engine temperature rising above normal
• Fluctuating coolant temperature
• Steam from the engine compartment in severe cases

Cooling-system leaks can also originate from radiators, expansion tanks, water pumps, pipe connections or other hoses, so the complete circuit should be inspected.

Why Replacement Matters:
The cooling system must remain sealed and properly pressurised to control engine temperature effectively.

If the supply hose begins to leak, coolant can escape and the system may gradually lose both fluid and pressure. As the coolant level falls, the engine becomes less able to transfer and dissipate heat.

A deteriorated hose may also split suddenly under operating pressure, causing rapid coolant loss.

Continued operation with insufficient coolant can lead to:

• Engine overheating
• Cylinder-head damage
• Head-gasket damage
• Damage to seals and cooling-system components
• Reduced engine reliability
• Breakdown caused by sudden coolant loss

Replacing a deteriorated hose helps restore:

• Correct coolant circulation
• Proper cooling-system pressure
• A sealed cooling circuit
• Stable engine temperature
• Reliable long-term cooling-system operation

Replacing a hose at the first sign of leakage, cracking or swelling can help prevent a relatively minor cooling-system fault from becoming a much more expensive engine repair.

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

99710650101

The product you are viewing cross references to these numbers

Brake Booster Vacuum Line, For Right Hand Drive (RHD).
The Porsche Brake Booster Vacuum Line is a genuine replacement vacuum pipe designed for right-hand-drive Porsche Cayenne models.

Fits:

• Porsche 955 Cayenne 3.2L V6 2003-06
• Porsche 955 Cayenne S 4.5L V8 2003-06
• Porsche 955 Cayenne Turbo 4.5L 2003-06
• Porsche 955 Cayenne Turbo S 4.5L 2006>>
• Porsche 957 Cayenne 3.0L Diesel 2007-10
• Porsche 957 Cayenne 3.6L 2007-10
• Porsche 957 Cayenne S / GTS 4.8L 2007-10
• Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10  

Diagram Ref No 13

The line forms part of the brake servo system, carrying vacuum to the brake booster so that additional assistance can be applied when the driver presses the brake pedal.

A properly sealed vacuum line is essential for maintaining effective brake assistance. If the original pipe becomes cracked, damaged or develops a leak, the brake booster may not receive sufficient vacuum, resulting in increased pedal effort and reduced braking assistance.

This genuine Porsche replacement restores the correct vacuum connection and factory routing within the braking system.

What This Product Does:
The brake booster, also known as the brake servo, uses vacuum assistance to reduce the amount of physical force required from the driver when applying the brakes.

The vacuum line provides the connection through which vacuum reaches the brake booster.

Its primary functions include:

• Supplying vacuum to the brake booster
• Maintaining a sealed vacuum circuit
• Supporting power-assisted braking
• Reducing the amount of pedal effort required during braking
• Helping provide consistent brake pedal assistance
• Maintaining the correct factory routing of the vacuum system
• Connecting the brake servo to the relevant vacuum supply components

The vacuum line does not create braking pressure itself. Instead, it allows the brake booster to assist the hydraulic braking system.

Symptoms Of Wear Or Failure:
Vacuum lines can deteriorate through age, engine-bay heat, vibration and repeated pressure changes.

Common symptoms of a damaged or leaking brake booster vacuum line include:

• Brake pedal becoming unusually hard
• Increased effort required to stop the vehicle
• Reduced brake servo assistance
• Brakes feeling normal initially but becoming harder after repeated applications
• Hissing or sucking noise when the brake pedal is pressed
• Audible vacuum leak from the engine compartment
• Cracks or splits in the vacuum pipe
• Damaged or loose connections
• Vacuum hose becoming brittle or hardened
• Physical damage to the line
• Brake booster performance becoming inconsistent
• Vacuum-related fault codes where monitored by the vehicle
• Poor sealing around vacuum-line connections

A hard brake pedal can also be caused by a faulty brake booster, vacuum pump, non-return valve or related vacuum-system component, so correct diagnosis is recommended before replacement.

Why Replacement Matters:
The brake booster significantly reduces the physical effort required to apply the brakes.

If the vacuum line leaks or becomes disconnected, the booster may not receive enough vacuum to provide normal assistance. The hydraulic braking system may still operate, but substantially more pedal force can be required from the driver.

This can make the vehicle more difficult to stop comfortably and predictably, particularly during emergency braking or repeated brake applications.

A vacuum leak can also prevent the brake servo from storing or maintaining sufficient vacuum between braking events.

Replacing a damaged vacuum line helps restore:

• Correct brake booster vacuum supply
• Normal power-assisted braking
• Consistent brake pedal effort
• Reliable brake servo operation
• Proper sealing of the vacuum circuit
• Factory-correct hose routing and connections

Because this component forms part of the braking assistance system, cracks, leaks or damaged connections should not be ignored.

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95535557805

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Wheel Housing Liner, Front.

Fits:

• Porsche Boxster 987 MKII 2.9L 2009-12
• Porsche Boxster S 987 MKII 3.4L 2009-12
• Porsche Cayman 2.9L 987C MKII 2009-12
• Porsche Cayman S / R 3.4L 987C MKII 2009-12  

Diagram Ref No 1

Installed inside the front wheel arch, the liner creates a protective barrier between the rotating wheel and vulnerable bodywork, cooling components and surrounding hardware.

In addition to protecting the wheel housing from road debris and water spray, this particular liner forms part of the vehicle's airflow-management system, helping direct air around the radiator and toward the braking area.

What This Product Does:
The front wheel housing liner helps protect components inside the wheel arch while controlling airflow around the front of the vehicle.

Its functions include:

• Protecting inner bodywork from stones and debris
• Reducing direct water and mud spray
• Shielding wiring and nearby components
• Helping prevent road salt and dirt accumulation
• Helping manage airflow exiting the radiator area
• Directing cooling air toward the braking system
• Reducing wheel-arch noise
• Maintaining the original Porsche underbody and wheel-arch layout

Although the liner is not a structural suspension component, correct fitment is important for protection, airflow and clearance around the front wheel.

Symptoms Of Wear Or Failure:
Wheel housing liners can become damaged through impact, age, tyre contact or incorrect removal.

Common symptoms include:

• Cracked plastic
• Split or torn sections
• Broken mounting tabs
• Enlarged or torn mounting holes
• Missing pieces
• Liner hanging down
• Rattling from the front wheel arch
• Flapping noises at speed
• Scraping or rubbing noises
• Tyre contact with the liner
• Missing screws or plastic fasteners
• Distorted panel shape
• Heavy abrasion
• Damaged air vents or ducts
• Increased debris collecting behind the liner

A liner may still appear mostly attached while being sufficiently damaged to interfere with tyre clearance or airflow.

Why Replacement Matters:
A damaged or missing liner exposes normally protected areas to stones, moisture and road contamination.

Continued use may contribute to:

• Damage to painted inner bodywork
• Increased corrosion risk
• Contamination around wiring and brackets
• Dirt accumulation around cooling components
• Reduced effectiveness of brake-cooling airflow
• Increased wheel-arch noise
• Loose plastic contacting the tyre
• Further damage to adjoining underbody panels

Replacing the damaged liner restores both the protective barrier and the original airflow path.

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98750412

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Air Deflector Plate

The Genuine Porsche Air Deflector Plate is an original Porsche replacement component designed to direct airflow around the relevant front suspension and wheel-area components.

Fits:

• Porsche 968 3.0L 1992-94
• Porsche 968 Sport 3.0L 1994-95
• Porsche 968 CS 3.0L 1993-95
• Porsche 968 Turbo S 3.0L 1993-94

Diagram Ref No 1

Air deflector plates form part of the vehicle's original airflow management system, helping guide moving air through designated areas beneath the vehicle.

These components can become damaged or dislodged through road debris, kerb contact, general wear or previous suspension repairs.

Replacing a missing or damaged air deflector plate helps restore the original factory configuration and maintain the intended airflow arrangement.

Manufactured as a Genuine Porsche replacement part, the air deflector plate is suitable for owners who want to maintain their vehicle using original equipment components.

What Does the Air Deflector Plate Do?

The air deflector plate helps guide airflow around the designated suspension and wheel-area components as the vehicle moves.

Depending on its exact mounting position, an air deflector can contribute to the management of airflow around nearby mechanical components.

Its main functions include:

• Directing airflow through the intended area
• Maintaining the original underbody airflow arrangement
• Helping shield adjacent components from some road debris
• Restoring the original equipment configuration
• Replacing missing or damaged airflow guides

Although relatively small, air deflector plates are part of the overall engineering of the vehicle's suspension and airflow management system.

Why Does the Air Deflector Plate Fail?

Air deflector plates are exposed to road conditions, moisture, vibration and debris throughout their service life.

Common causes of damage include:

• Contact with kerbs or road obstacles
• Impact from stones and road debris
• Damage during suspension maintenance
• Broken or missing mounting hardware
• Age-related deterioration
• Incorrect installation following previous repairs
• General wear from everyday driving

Once damaged, an air deflector may become loose, distorted or detached from its mounting position.

When Should It Be Replaced?

Replacement is recommended when the original air deflector plate becomes cracked, bent, loose, damaged or missing.

Common signs include:

• Visible cracks or broken sections
• Distorted or damaged plate profile
• Missing mounting points or fasteners
• Loose or insecure attachment
• Contact with surrounding moving components
• Missing deflector following previous repairs
• Damage discovered during suspension inspection

Replacing damaged air deflectors is also worthwhile during front suspension refurbishment or a complete vehicle restoration.

Checks & Diagnosis

Inspect the air deflector plate and surrounding mounting points for visible damage.

Check for:

• Cracks, distortion or broken edges
• Loose or missing fasteners
• Damage to the mounting bracket or supporting component
• Incorrect positioning
• Contact with adjacent suspension or wheel components
• Missing deflectors following previous maintenance

Ensure that the replacement plate is correctly positioned and securely attached.

Installation Notes

Before fitting the replacement air deflector plate, inspect the original mounting position and associated fixing hardware.

Remove any damaged components and check that the surrounding mounting surfaces are in good condition.

Install the correct part number in its designated position, ensuring the deflector is properly aligned and securely fastened.

Check for adequate clearance from moving suspension components, wheels and brake assemblies.

Any missing or damaged mounting hardware should be replaced as necessary.

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94434105

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This genuine Porsche exterior mirror housing is supplied primed for the right-hand mirror on 957 Cayenne vehicles, 2007–10. The specified application requires PR code 9TF and includes a courtesy light.

Fits

• Porsche Cayenne 9PA1 (957) 2007–2010
• Porsche 957 Cayenne 3.0L Diesel 2007–10
• Porsche 957 Cayenne 3.6L 2007–10
• Porsche 957 Cayenne S / GTS 4.8L 2007–10
• Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007–10

Confirm the vehicle model, production year, engine, right-hand mirror specification and PR code before ordering.

Diagram: Rear-view mirror / Exterior mirror / Accessories Cayenne 9PA1 (957) 2007-10.

What This Product Does

The housing provides the exterior structure for the associated rear-view mirror components. It replaces a damaged casing while retaining the specified mounting layout and exterior shape. Its primer finish requires preparation and painting to suit the vehicle colour.

Functions

• Renews the right-side mirror casing.
• Accommodates the associated components in their intended positions.
• Retains the mirror assembly’s original profile.
• Provides a primed surface for colour finishing.

Technical Details

• Brand: genuine Porsche.
• Part number: 95573162801G2X; previous reference: 95573162800G2X.
• Installation position: right-hand exterior mirror.
• Surface treatment: primed, requiring final paint finishing.
• Equipment specification: PR code 9TF; application with courtesy light.
• Exploded-diagram quantity: 1.

Symptoms of Fault

• Visible cracks or damage following an impact.
• A casing that moves or feels insecure.
• Damaged retaining tabs or mounting features.
• Peeling paint or a deteriorated surface.
• Mirror vibration or incorrect positioning.

Why Replacement Matters

Housing damage can leave the mirror assembly loose, misaligned or visibly deteriorated. Renewing the casing addresses its mounting and appearance without treating the housing as a complete mirror replacement. Check the glass, adjustment mechanism, courtesy lamp, seals and fixings separately during the repair; damage to these components requires its own assessment.

OE Reference

• 95573162801G2X
• 95573162800G2X

FAQs

• Does this include the whole mirror assembly?
  No. The product is an individual housing. Glass, adjustment parts, lighting and other associated components are separate unless expressly included.
• Is the surface already colour-finished?
  No. The primer needs suitable preparation followed by painting in the chosen vehicle colour.
• Is this the left or right housing?
  It fits the right-hand exterior mirror; do not select it solely by driver or passenger position.
• What should be checked for compatibility?
  Match 95573162801G2X, PR code 9TF and the supplied applications to the vehicle. Where mirror equipment differs, confirm the specification using the VIN.

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95573162801G2X

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Engine Mount Support Stop.
Sold each - 2 required per car

Fits

• Porsche Boxster 986 2.5L 1997–99
• Porsche Boxster 986 2.7L 1999–02
• Porsche Boxster S 986 3.2L 1999–02
• Porsche Boxster 986 2.7L 2003–04
• Porsche Boxster S 986 3.2L 2003–04
  
  

What This Product Does

The stop works within the mounting system alongside its bracket, engine carrier and fixings. It supports the mounting arrangement’s intended operation; it is a separate component rather than a complete replacement engine mount. Movement control and vibration isolation depend on the condition and correct installation of the whole assembly.

Functions

• Provides the stop component specified for the engine suspension.
• Works alongside the carrier and mounting bracket.
• Supports correct operation of the assembled mounting system.

Technical Details

• Brand: genuine Porsche.
• Part identification: 98637525501.
• Exploded-diagram designation: stop.
• Application assembly: engine suspension, 986 Boxster 1997–04.
• Assembly requirement shown in the supplied diagram: two stops. This does not specify pack contents.

Symptoms of Fault

• Noticeable cabin vibration while idling.
• Clunks during gear engagement or throttle transitions.
• Unusual drivetrain movement observed during checks.
• Cracking, distortion or deterioration affecting mounting components.
• Contact between the exhaust and nearby brackets or components.

These observations do not establish that the stop is faulty. Check the main mount, transmission mounts, carrier, bracket and fixings to identify the cause before selecting replacement parts.

Why Replacement Matters

Renewing a damaged stop helps return the mounting system to its specified condition. When carrying out mount or carrier repairs, assess the stops alongside the surrounding components rather than assuming that replacing one item will resolve every vibration or noise.

Examine bolts, studs and nuts for damage or suitability for reuse. Addressing confirmed defects during the same repair can avoid dismantling the assembly again.

FAQs

• What quantity does the supplied diagram show?
  Two stops are specified for the assembly. Establish which components need renewal and confirm pack contents separately.
• Does this replace the entire mounting unit?
  No. This component is the stop; the carrier, bracket and associated hardware are distinct parts.
• How do I check the application?
  Use the vehicle’s identification details and Porsche parts information to verify reference 98637525501 against the listed model, engine and year.

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98637525501

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Round seal 33,3 X 2,4 by Porsche for selected 911, 964, 993 and 996 applications. This O-ring is identified by part number 99970731540 and is used within crankcase and connection-piece assemblies.

Fits:

Porsche 911 1987–89 (Crankcase right)
Porsche 911 1984–86 (Crankcase right)
Porsche 964 1989–94 (Crankcase right)
Porsche 993 1994–98 (Crankcase right)
Porsche 996 GT3-1 M96.76 2000–01 (Crankcase right)
Porsche 996 GT3-1/GT3 RS M96.79 2004–05 (Crankcase right)

• Diagram reference number 30

Check fitment for your specific vehicle, model, year and engine before ordering.

What This Product Does

This O-ring forms a sealing interface within the relevant engine assembly, helping to contain fluids between mating components.

Functions

• Seals the specified crankcase or connection-piece interface
• Helps retain fluid within the assembly
• Supports correct fit between mating components
  
  

Technical Details

• Type: round seal / O-ring
• Size: 33,3 X 2,4

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99970731540

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Two-Button Handheld Transmitter - Coupe / Cabriolet with Option Code 534 and 533

Fits:

• Porsche 996 C2 3.6L 09/01-2005
• Porsche 996 C4 3.6L 09/01-2005
• Porsche 996 C4S 3.6L 09/01-2005
• Porsche 996 TURBO 2001-05
• Porsche 996 GT2 2001-05
• Porsche 996 GT3 MKI 1999-01
• Porsche 996 GT3 MKII 2003>>
• Porsche 996 GT3 RS 2003-04
  
  

Diagram Ref No 12

What This Product Does

This genuine Porsche remote communicates with the matching factory central-locking and anti-theft equipment. It is a handheld transmitter, rather than a relay, fixing or vehicle-mounted control module.

Functions

• Transmits locking commands remotely.
• Communicates with compatible factory security equipment.
• Offers controls through two buttons.

Technical Details

• Part identification: 99663724440; two-button configuration; application period 2001–05.
• M534 denotes the anti-theft device. M533 denotes omission of radio-operated convertible-top control.
  
  

Symptoms of Fault

• No response when remote locking is requested.
• Remote operation cuts in and out.
• The transmitter only works close to the vehicle.
• Physical deterioration affects the buttons or casing.
• Manual key operation remains possible while remote operation fails.

Why Replacement Matters

Replacing a confirmed faulty transmitter can recover remote access through the original locking equipment. Similar behaviour may result from a depleted remote battery, low vehicle voltage or faults elsewhere in the security system, so investigate these before changing the transmitter.

FAQs

How many buttons does this version have?
Porsche identifies 99663724440 as having two buttons.

Is every 996 application covered?
No. Check the transmitter-specific dates, body style and M534/M533 requirements as well as the model listing.

Where should intermittent operation be investigated first?
Assess both batteries, inspect relevant connections and review security-system fault information before deciding which component needs renewal.

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99663724440

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