Oil Pipes & Hoses

Oil Pipe Tank To Engine, 1st Section.

The OE Match Oil Pipe Tank to Engine is a replacement oil line for the dry-sump lubrication system used on classic Porsche 911 models.

Fits:

• Porsche 911 2.7-3.0 08/1973-07/1974

Diagram Ref No 20

This first section forms part of the oil supply route between the external oil tank and the engine, allowing engine oil to circulate correctly through the lubrication system. Maintaining a secure, unrestricted oil path is essential for supplying internal engine components with the oil required for lubrication and cooling.

On an air-cooled Porsche 911, engine oil performs an especially important role because it contributes not only to lubrication but also to temperature control. A damaged, leaking or restricted oil pipe can therefore affect oil level, lubrication reliability and engine protection.

What This Product Does:

• Transfers engine oil from the external oil tank toward the engine.
• Forms part of the Porsche 911 dry-sump lubrication system.
• Helps maintain a dependable supply of oil to the engine.
• Supports lubrication of internal engine components.
• Contributes to engine cooling through continuous oil circulation.
• Helps maintain correct oil-system operation.
• Provides a secure connection between sections of the lubrication system.
• Replaces a leaking, corroded, crushed or damaged original oil pipe.
• Helps restore the integrity of the engine lubrication system during restoration or repair.

The Porsche 911 dry-sump system relies on external oil lines as part of its normal circulation path, making the condition of these pipes important to reliable engine operation.

Symptoms Of Wear Or Failure:
Possible symptoms of a deteriorated oil pipe include:

• Visible engine oil leaks beneath the vehicle.
• Oil seepage around the pipe or its fittings.
• Wet or oily deposits along the pipe.
• Gradual reduction in engine oil level.
• Burning-oil smell if leaked oil reaches hot components.
• Oil smoke caused by external leakage onto heated surfaces.
• Corrosion or rust on the metal pipe.
• Crushed, kinked or distorted pipe sections.
• Damaged or seized fittings.
• Cracks or damage around connections.
• Oil contamination across the underside of the vehicle.
• Reduced oil flow if the pipe has become internally restricted.
• Oil-pressure warning or irregular pressure in severe cases.

Oil loss from a damaged external pipe may initially appear minor, but it can become more serious as corrosion or cracking progresses.

Why Replacement Matters:
The engine depends on a continuous and reliable supply of oil for lubrication.

A leaking oil pipe can gradually lower the quantity of oil available to the engine. If the oil level becomes too low, internal components may no longer receive adequate lubrication.

This can increase wear to components such as:

• Crankshaft bearings.
• Camshaft and valvetrain components.
• Pistons and cylinders.
• Intermediate-shaft components.
• Other lubricated internal engine parts.

Replacing a leaking or damaged pipe helps restore a sealed oil circuit and reduces the risk of lubrication loss.

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

91110772800

The product you are viewing cross references to these numbers

Oil Pipe Tank To Engine, 2nd Section.

The Porsche 911 Oil Pipe Tank to Engine, 2nd Section – OE Match (Part Number: 91110773910/1) is a replacement engine oil pipe designed for selected classic Porsche 911 models manufactured between 1973 and 1977.

Fits:

• Porsche 911 1973-77

Diagram Ref No 33

Designed to match the fitment and intended functionality of the original Porsche component, this OE Match replacement offers a cost-effective alternative to a Genuine Porsche-branded oil pipe while helping maintain reliable oil circulation within the engine's dry-sump lubrication system.

The oil pipe forms the second section of the oil line connecting the external engine oil tank to the engine. It provides a secure passage for engine oil, supporting the continuous oil supply required to lubricate critical internal engine components.

The air-cooled Porsche 911 engine relies on its external oil tank and dry-sump lubrication system to maintain effective lubrication under varying driving conditions. A properly functioning oil pipe is therefore essential for preventing oil loss and ensuring dependable engine operation.

Over time, original oil pipes can become corroded, weakened or damaged due to age, moisture, road salt, vibration and repeated temperature changes. Deteriorated pipework or connections may lead to oil leaks, reduced oil supply and potentially serious engine damage.

Replacing a worn or leaking oil pipe with an OE Match replacement helps restore the integrity of the lubrication system and maintain reliable engine oil circulation.

Ideal for routine engine maintenance, oil system repairs, exhaust backdate conversions and classic Porsche restoration projects, this OE Match oil pipe provides a practical replacement solution for ageing original components.

What This Product Does:

The oil pipe tank to engine is an essential component of the Porsche 911's dry-sump engine lubrication system.

Unlike conventional wet-sump engines, the classic Porsche 911 uses a separate external oil tank to store much of the engine oil. Oil is circulated between the tank and engine to provide lubrication and assist with engine temperature management.

The second-section oil pipe forms part of the connection between the external oil tank and the engine, allowing oil to pass through the lubrication circuit.

Its main functions include:

• Supporting engine oil circulation: Provides a passage for oil to flow between the external oil tank and engine.
• Maintaining lubrication supply: Helps ensure engine oil can reach the lubrication system responsible for protecting moving components.
• Preventing oil leakage: Secure pipework and correctly sealed connections help prevent oil from escaping.
• Supporting engine cooling: Contributes to the circulation of engine oil, which also carries heat away from internal engine components.
• Maintaining lubrication system integrity: Provides a reliable connection within the dry-sump oil system.
• Protecting internal engine components: Supports the oil supply required to lubricate bearings, camshafts, crankshaft components and other moving parts.
• Supporting reliable engine operation: Helps maintain consistent oil circulation during everyday driving and demanding operating conditions.
• Maintaining the original oil line arrangement: Preserves the intended layout of the classic Porsche 911 lubrication system.

Symptoms Of Wear Or Failure:
The original Porsche 911 oil pipes are exposed to demanding operating conditions, including engine heat, vibration, moisture, road debris and corrosion.

Over time, these conditions may cause metal fatigue, weakened pipe sections, damaged connections or deterioration of sealing surfaces.

Common symptoms of a worn or damaged oil pipe include:

• Visible engine oil leaks: Oil may escape from corroded pipework, cracked sections or deteriorated connections.
• Oil stains beneath the vehicle: Leaking oil may leave noticeable patches on the ground, particularly beneath the engine or oil tank connection area.
• Corrosion or rust: Prolonged exposure to moisture and road salt can weaken the metal pipe and increase the risk of leakage.
• Damaged or dented pipework: Road debris, accidental impacts or incorrect maintenance procedures may deform the pipe and potentially restrict oil flow.
• Loose or leaking fittings: Deteriorated sealing surfaces, damaged threads or incorrectly tightened connections can result in oil seepage.
• Reduced engine oil level: Continued leakage may gradually reduce the amount of oil available within the lubrication system.
• Oil residue around connections: Damp or greasy deposits around the pipe fittings may indicate an early-stage oil leak.
• Cracked or weakened pipe sections: Ageing, vibration and repeated thermal expansion may contribute to cracking or structural deterioration.
• Burning oil smell: Leaking oil may contact hot engine or exhaust components, producing a noticeable burning oil odour.
• Smoke from the engine area: Oil contacting hot exhaust components can generate smoke, particularly when the engine reaches operating temperature.
• Low oil pressure warning: Severe oil loss or significant restriction within the lubrication circuit may contribute to reduced oil pressure and possible engine damage.

Why Replacement Matters:
Replacing a deteriorated oil pipe is essential for maintaining the reliability and integrity of the Porsche 911's dry-sump lubrication system.

A damaged or corroded pipe can allow engine oil to escape, potentially reducing the oil available for lubrication. Continued operation with significant oil loss can lead to excessive friction, increased engine temperatures and serious internal engine damage.

A severely weakened oil pipe may also fail suddenly, causing rapid oil loss and potentially compromising engine lubrication.

Installing a replacement OE Match Oil Pipe Tank to Engine helps to:

• Restore reliable oil circulation: Maintain a secure connection between the external oil tank and engine.
• Prevent engine oil leaks: Replace corroded or damaged pipework to restore effective oil containment.
• Maintain engine lubrication: Support the continuous oil supply required by critical internal components.
• Protect against engine damage: Reduce the risk of insufficient lubrication caused by oil loss.
• Support engine temperature management: Maintain the oil circulation required for lubrication and heat transfer.
• Improve long-term reliability: Replace ageing components before they develop more serious leaks or structural failures.
• Reduce unnecessary oil loss: Help maintain correct engine oil levels and prevent excessive oil consumption caused by external leakage.
• Support exhaust backdate conversions: Provide the appropriate oil pipe arrangement for compatible earlier-style exhaust configurations.
• Assist with classic Porsche restoration: Restore the intended lubrication system layout during vehicle refurbishment.
• Provide a cost-effective repair: Offer an OE Match alternative to the Genuine Porsche replacement component.

Replacing the oil pipe is particularly recommended when repairing oil leaks, refurbishing the dry-sump lubrication system or carrying out major engine and exhaust system maintenance.

For older Porsche 911 models, inspecting the complete oil pipe arrangement is advisable to identify additional corrosion, damaged fittings or deteriorated flexible hoses.

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

91110773910

The product you are viewing cross references to these numbers

Oil Pipe Tank to Engine. 2nd section.

Fits:
Porsche 911 1973-77

Click 'Zoom in' for large parts diagram.
Diagram Ref No 33.

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

91110773911

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Oil pipe tank to engine.

Fits:
Porsche 911 1974-83 SC 3.0L

Click 'Zoom in' for large parts diagram.
Diagram Ref No 20.

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

93010774111

The product you are viewing cross references to these numbers

Oil Pipe Tank To Engine.
The OE Match Oil Pipe Tank to Engine is a high-quality replacement oil line designed to connect the external oil tank to the engine within Porsche's dry sump lubrication system. This critical oil pipe ensures a continuous supply of engine oil is delivered from the oil reservoir to the engine, supporting lubrication, cooling and overall engine performance.

Fits:

Diagram Ref No 20

Manufactured to OE specifications for fit, function and durability, this replacement oil pipe is engineered to withstand high oil temperatures, pressure fluctuations and demanding operating conditions. It is the ideal solution for replacing corroded, damaged or leaking original oil lines and restoring the integrity of the vehicle's lubrication system.

What This Product Does:

• Transfers engine oil from the external oil tank to the engine.
• Forms an essential part of the Porsche dry sump lubrication system.
• Maintains a constant supply of oil to critical engine components.
• Supports engine cooling through effective oil circulation.
• Helps maintain correct oil pressure throughout the lubrication system.
• Protects internal engine parts from excessive wear and friction.

Symptoms Of Wear Or Failure:

• Visible oil leaks beneath the vehicle.
• Oil seepage around pipe connections or fittings.
• Corrosion or rust on metal sections of the oil line.
• Cracked, damaged or deteriorated hose sections.
• Low engine oil levels caused by oil loss.
• Oil pressure warning lights or fluctuating oil pressure readings.
• Burning oil smells from leaking oil contacting hot engine components.
• Oil contamination around the engine bay or underbody.

Why Replacement Matters:

• Oil pipes are exposed to continuous heat, vibration, road debris, moisture and pressure changes throughout their service life. Over time, corrosion, fatigue and deterioration can compromise the pipe's ability to safely transport oil between the tank and engine.
• A leaking or restricted oil pipe can reduce oil flow, affect oil pressure and increase the risk of oil starvation. If left unresolved, this can result in accelerated engine wear, overheating and potentially severe engine damage. Replacing a worn oil pipe helps maintain proper lubrication, supports reliable engine operation and protects critical internal components from costly repairs.

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

93010774111

The product you are viewing cross references to these numbers

Oil pipe tank to engine.

Fits:
Porsche 911 1975-77

Click 'Zoom in' for large parts diagram.
Diagram Ref No 20.

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

91110774210

The product you are viewing cross references to these numbers

Oil Pipe Tank To Engine.

The OE Match Oil Pipe Tank to Engine is a replacement lubrication-system component designed for classic Porsche 911 models equipped with the dry-sump engine oil system.

Fits:

• Porsche 911 1975-77

Diagram Ref No 20

The pipe forms part of the oil circuit between the vehicle's external oil reservoir and the engine, providing a secure route for engine oil to circulate through the lubrication system. Maintaining an unrestricted and leak-free oil supply is essential for protecting bearings, valvetrain components and other internal engine parts.

On an air-cooled Porsche 911, engine oil also makes an important contribution to temperature control. A leaking, crushed, corroded or otherwise damaged oil pipe can therefore affect both lubrication and effective heat management.

What This Product Does:

• Carries engine oil between the external oil tank and the engine.
• Forms an important part of the Porsche dry-sump lubrication system.
• Helps maintain a reliable supply of oil to the engine.
• Supports lubrication of bearings and other internal moving components.
• Contributes to engine cooling through effective oil circulation.
• Maintains a secure and sealed oil-system connection.
• Provides an unrestricted route for oil flow.
• Replaces an original pipe that has become corroded, leaking, crushed or damaged.
• Helps restore lubrication-system integrity during engine repair or vehicle restoration.

The dry-sump lubrication system relies on external pipework to move oil between the engine and separate oil reservoir, making the condition of these lines important to reliable engine operation.

Symptoms Of Wear Or Failure:
Possible signs of deterioration include:

• Visible engine oil leaking underneath the vehicle.
• Oil seepage around the pipe or threaded connections.
• Wet or oily deposits along the pipe.
• Gradual reduction in engine oil level.
• Oil spots appearing where the vehicle is parked.
• Burning-oil smell.
• Smoke if leaked oil reaches hot engine or exhaust components.
• Visible corrosion or rust on the pipe.
• Crushed, kinked or flattened sections.
• Damaged or seized fittings.
• Cracks around connections or mounting points.
• Oil contamination across surrounding chassis components.
• Evidence of previous temporary or poor-quality repairs.
• Reduced oil circulation if the pipe becomes internally restricted.

A pipe does not have to be visibly leaking to be defective. Crushing or deformation can reduce the internal cross-section and interfere with oil flow.

Why Replacement Matters:
The engine depends on a continuous supply of clean engine oil for lubrication and cooling.

If an external oil line begins to leak, the available oil quantity can gradually fall. Severe oil loss can eventually compromise lubrication and increase the risk of damage to expensive internal engine components.

Components that depend on reliable oil circulation include:

• Crankshaft bearings.
• Connecting-rod bearings.
• Camshafts and valvetrain components.
• Pistons and cylinders.
• Intermediate-shaft components.
• Other lubricated internal engine parts.

Replacing a deteriorated pipe helps restore a sealed and dependable oil circuit.

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

91110774210

The product you are viewing cross references to these numbers

Oil pipe thermostat to crankcase.

Fits:
Porsche 911 Turbo (930) 3.3L 1984-89 Engine to Thermostat (2nd half)

Click 'Zoom in' for large parts diagram.
Diagram ref no 18.

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

93010774111

The product you are viewing cross references to these numbers

Oil Pipe Thermostat To Crankcase.
The OE Match Oil Pipe Thermostat to Crankcase is a high-quality replacement engine lubrication component designed to carry engine oil between the external oil thermostat and the engine crankcase. Manufactured to OE specifications for fit, flow capacity and durability, this oil pipe plays a critical role in maintaining efficient oil circulation and ensuring the engine receives a consistent supply of lubricating oil under all operating conditions.  

Fits:

Diagram Ref No 18

Constructed from high-quality corrosion-resistant metal tubing with precision-formed bends and OE-style threaded connections, the pipe is engineered to withstand high oil pressures, elevated temperatures and constant engine vibration. It provides a secure, leak-free connection within the dry-sump lubrication system, helping to preserve engine performance and reliability.  

What This Product Does:

• Transfers engine oil between the external oil thermostat and the crankcase.
• Maintains efficient oil circulation throughout the lubrication system.
• Supports correct oil temperature regulation.
• Delivers a consistent supply of lubricating oil to the engine.
• Helps reduce engine wear by maintaining proper oil flow.
• Works with the external oil cooling system to optimise engine temperature.
• Provides secure, leak-free oil transfer under pressure.
• Forms an essential part of the engine's dry-sump lubrication system.

Symptoms Of Wear Or Failure:

• Visible engine oil leaks.
• Oil residue around the pipe or threaded connections.
• Low engine oil level.
• Oil pressure warning light illumination.
• Oil smell from the engine bay.
• Corrosion or physical damage to the pipe.
• Cracked or leaking pipe connections.
• Reduced oil circulation.
• Increased engine operating temperatures.
• Premature engine wear caused by lubrication loss.

Why Replacement Matters:

• Oil pipes operate under high pressure and are continuously exposed to hot engine oil, vibration, road debris and environmental corrosion. Over time, the pipe can become damaged through corrosion, impact or fatigue, while threaded connections and sealing surfaces may deteriorate, allowing oil to leak.
• A leaking or restricted oil pipe can reduce oil pressure and compromise the lubrication of critical engine components. Continued operation with insufficient oil flow can accelerate wear of bearings, camshafts and other internal engine parts, potentially leading to severe engine damage and costly repairs.
• Replacing a worn or damaged oil pipe restores reliable oil circulation and protects the integrity of the lubrication system. An OE Match replacement provides factory-style fitment, durable construction and dependable sealing performance, helping maintain the engine reliability, performance and longevity expected from your Porsche.

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

93010774111

The product you are viewing cross references to these numbers

Oil pipe thermostat to engine.

Fits:
Porsche 911S Carrera 2.7L 1973-74

Diagram ref no 26

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

91110772420

The product you are viewing cross references to these numbers

Oil pipe thermostat to engine.

Fits:
Porsche 911S Carrera 2.7L 1973-74

Diagram ref no 26

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

91110772420

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Oil pipe, Brass, Painted, RETURN. 1973 PORSCHE 911S 2.4 / CARRERA 2.7

Fits:
Porsche 911 CARRERA 2.7 RS 1973
Porsche 911 S 2.4L 1972-73

TYP 911/53*
TYP 911/63*
TYP 911/83
TYP 911/88

* Please note: not all S models have the same pipe work. If in doubt please check with our sales team before making purchase.

Click 'Zoom in' for large parts diagram.
Diagram Ref No 19.

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

91120704401

The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.

Oil Pipe, Oil Tank To Crankcase.
The OE Match Oil Pipe, Oil Tank to Crankcase is a high-quality replacement lubrication system component designed to transfer engine oil between the oil tank and crankcase in dry-sump Porsche engine applications. Manufactured to OE specifications for fit, flow characteristics and durability, this oil pipe plays a vital role in maintaining proper oil circulation and engine lubrication. 

Fits:

Diagram Ref No 18

Constructed from durable materials resistant to heat, oil exposure, pressure fluctuations and engine vibration, the pipe is engineered to provide reliable oil transfer under all operating conditions. Correct oil flow between the tank and engine is essential for maintaining lubrication, cooling and long-term engine reliability.  

What This Product Does:

• Transfers engine oil between the oil tank and crankcase.
• Supports the operation of the dry-sump lubrication system.
• Maintains consistent oil circulation throughout the engine.
• Helps ensure critical engine components receive adequate lubrication.
• Assists with engine cooling through oil circulation.
• Supports proper oil pressure and system efficiency.
• Contributes to engine performance and longevity.

Symptoms Of Wear Or Failure:

• Visible engine oil leaks.
• Oil residue around the pipe or fittings.
• Low engine oil level.
• Oil drips beneath the vehicle.
• Reduced oil pressure in severe cases.
• Burning oil smell from oil contacting hot engine components.
• Cracked, corroded or physically damaged pipe sections.
• Deteriorated seals or connection points.
• Increased risk of engine lubrication issues.

Why Replacement Matters:

• Oil pipes are continuously exposed to hot engine oil, vibration, pressure changes and environmental contaminants. Over time, corrosion, fatigue, physical damage or deterioration of sealing surfaces can compromise the pipe's integrity and lead to oil leaks.
• A leaking oil pipe can result in oil loss, reduced lubrication efficiency and contamination of surrounding engine components. If left unresolved, significant oil loss may lead to low oil pressure, accelerated engine wear and potentially severe engine damage due to inadequate lubrication.
• Replacing a worn or damaged oil pipe restores reliable oil circulation, prevents leaks and helps maintain the integrity of the engine's lubrication system. An OE Match replacement provides factory-style fitment, dependable durability and long-term performance, ensuring your Porsche engine receives the lubrication and protection it requires for reliable operation.

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

91110774114

The product you are viewing cross references to these numbers

Oil pipe. Oil tank to crankcase.

Fits:
Porsche 911 3.2 1984-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 18.

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

91110774118

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Painted brass oil return pipe by OE Match for Porsche 911 S 2.4 and Carrera 2.7 applications. Confirm the existing pipe arrangement, as S models do not all use identical pipework.

Fits

• Porsche 911 CARRERA 2.7 RS 1973
• Porsche 911 S 2.4 1972-73
  
  
• TYP 911/53*
  TYP 911/63*
  TYP 911/83
  TYP 911/88*
  
  

* Please note: not all S models have the same pipe work. If in doubt please check with our sales team before making purchase.

Diagram ref no: 19

What This Product Does

This rigid pipe provides the return route within the engine oil system. It carries oil through the lubrication circuit and is identified separately from the intake tube in the supplied assembly diagram.

Functions

• Routes returning engine oil through the connected pipework.
• Provides a rigid connection within the oil circulation system.
• Replaces a damaged or leaking return pipe during repair or restoration.
  
  

Technical Details

• Brand: OE Match.
• Construction: brass with a painted surface.
• Pipe function: RETURN.
• Return-pipe reference: 91120704401.
• The intake tube, 91120704301, is a separate component in the same assembly.
  
  

Symptoms of Fault

• Fresh oil marks beneath the vehicle.
• Oily deposits along the pipe or around its connections.
• Visible cracking, impact damage or worn fittings.
• Oil loss requiring repeated level checks or topping up.
  
  

Why Replacement Matters

A leaking or damaged pipe can allow oil to escape from the lubrication system. Replacing the affected component addresses the identified fault rather than leaving deteriorated pipework in service. Check adjacent connections, seals and supporting hardware during the repair, particularly where older pipework has been disturbed.

FAQs

Does oil around a union mean the pipe needs replacing?
Not necessarily. Inspect the connection and sealing components as well as the pipe itself before deciding which parts require renewal.

Will this suit every 911 S?
No. Pipe arrangements differ between S models, so compare the existing installation and confirm the relevant engine application.

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

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

91120704401

The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.

Oil Splash Valve. Sold as each.

Length: 21.5mm, Diameter: 6.2mm

Fits:
Porsche 911 SC - 1978 to 1983 (6 required)
Porsche 911 3.2 Carrera - 1984 to 1989 (6 required)
Porsche 928 S4 / 928 GT - 1987 to 1992 (8 required)

Diagram ref no 15

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

91110101101

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