Oil System & Pipes

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

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Oil pipe tank to engine. 2nd section.
Fits:
Porsche 911 1973-77
Diagram Ref No 33.

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Related, superseded, cross reference or alternative numbers for comparison.

91110773910

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Oil Pipe Tank to Engine. 2nd section.
Fits:
Porsche 911 1973-77
Click 'Zoom in' for large parts diagram.
Diagram Ref No 33.

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Related, superseded, cross reference or alternative numbers for comparison.

91110773911

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Oil pipe tank to engine.
Fits:
Porsche 911 1975-77
Click 'Zoom in' for large parts diagram.
Diagram Ref No 20.

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Related, superseded, cross reference or alternative numbers for comparison.

91110774210

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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.

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91110774210

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Oil return tube o-ring installer for Porsche 911
With this high-quality anodized aluminum tool, you will no longer have to worry about slicing the oil return tube O-rings or your fingers when installing these tight fitting seals. Simply insert the flanged end of the SR027 into the oil return tube, and slide the O-ring over the tapered end, sliding smoothly into place. No rips. No tears. No leaks.

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SR027

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Oil thermostat piston
Fits:
Porsche 911 1972-89
Click picture for large parts diagram.
Diagram Ref No 11.

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93010707600

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Oil tube mount hose piece
Fits:
Porsche 911 1972-89
Porsche 911 (930) Turbo 1975-77
Click 'Zoom in' for large parts diagram.
Diagram Ref No 18

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91120730200

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Oil tube mount hose piece
OE Match oil tube mount hose for Porsche 911 models from 1972 to 1989. This replacement hose is used within the engine oil system, helping support correct oil line connection, sealing, and routing.
Sol individually

Fits:
Porsche 911 1972 - 1989
Porsche 911 (930) Turbo 1975 - 1977

Diagram Ref No 18

The oil tube mount hose helps connect and support the engine oil tube or related oil line assembly. A correctly fitted hose helps maintain oil system integrity, prevent leaks, and keep the oil line routing secure within the engine bay or oil circuit area.

Functions
•  Replaces the oil tube mount hose
•  Supports correct oil tube or oil line connection
•  Helps maintain oil system sealing
•  Helps prevent oil leaks from aged or cracked hose sections
•  Supports correct oil line routing

•  Suitable for engine oil system service or restoration
•  OE Match replacement for Porsche 911 oil system repair

Why Replace This Part?
Oil hoses can harden, crack, swell, split, or leak due to age, heat, oil exposure, vibration, and engine bay conditions. A worn or damaged oil tube mount hose may cause oil seepage, leaks, oil smell, loose routing, or poor sealing at the connection point. Replacing the hose helps restore reliable oil system operation and a cleaner engine bay.

When to Replace This Part
•   Oil hose is cracked, brittle, swollen, or leaking
•   Oil seepage is visible around the tube or hose connection
•   Oil smell or residue is present in the engine bay
•   Engine oil line service is being carried out
•   Oil system restoration or engine rebuild work is in progress
•   Hose has become soft, loose, damaged, or oil-soaked
•   Preventive replacement is required during classic Porsche maintenance

Where it fits on the car
This hose fits within the engine oil system / oil tube mounting area on Porsche 911 models from 1972 to 1989. 

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

91120730200

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Oil tube to front cooler.
Fits:
Porsche 911 SC / 3.2L 1974-89
Diagram Ref No 12A

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93020711107

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Oil tube to front cooler.
Fits:
Porsche 911 SC / 3.2L 1974-89
Diagram Ref No 12A

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93020711107

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Oil tube. (Non Collapsible)
The OE Match Oil Tube (Non-Collapsible) is a high-quality replacement engine lubrication component designed to transport engine oil between critical parts of the lubrication system. Manufactured to OE specifications for fit, durability and performance, this rigid oil tube ensures a reliable flow of oil throughout the engine, helping to maintain proper lubrication, cooling and oil pressure.  
Sold Each.
x4 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 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• 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
• 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  

Diagram Ref No 13
Constructed to replicate the original factory design, this non-collapsible oil tube provides a secure and dependable oil passage capable of withstanding the high temperatures, pressures and vibration associated with normal engine operation. It is an essential component for maintaining the health and longevity of the engine's lubrication system.  
What This Product Does:

• Transfers engine oil between lubrication system components.
• Maintains consistent oil flow and oil pressure.
• Supports lubrication of critical engine parts.
• Assists with engine cooling through oil circulation.
• Helps ensure efficient operation of the lubrication system.
• Provides a secure, leak-resistant oil passage.
• Supports long-term engine reliability and performance.

Symptoms Of Wear Or Failure:

• Visible engine oil leaks.
• Oil drips beneath the vehicle.
• Low engine oil level between services.
• Oil residue around oil line connections.
• Reduced engine oil pressure.
• Oil pressure warning light illumination.
• Burning oil smell from oil contacting hot engine components.
• Corrosion, cracking or physical damage to the oil tube.
• Signs of oil seepage at connection points.

Why Replacement Matters:

• Engine oil tubes operate in demanding conditions and are continually exposed to heat, pressure fluctuations, vibration and environmental contaminants. Over time, corrosion, fatigue, physical damage or deteriorated sealing surfaces can lead to leaks and reduced lubrication system efficiency.
• A damaged oil tube can result in oil loss, reduced oil pressure and insufficient lubrication of critical engine components. If left unresolved, oil leaks can contribute to accelerated engine wear, overheating and potentially severe engine damage. Even minor leaks can worsen over time and create reliability and maintenance concerns.
• Replacing a worn or damaged oil tube restores proper oil circulation and helps maintain the integrity of the engine lubrication system. An OE Match replacement provides factory-style fitment, dependable performance and long-term durability, ensuring reliable oil delivery and continued protection for your Porsche engine.

Related reference numbers
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90110735101

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Oil Tube (non Collapsible). Stainless steel.
O-rings required part number  9997071124A
Price is for 1 but there are 4 per engine.
Fits:
Porsche 911 2.0L 1965 - 1969
Porsche 911 1970 - 1989
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram Ref No 13.

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

90110735101

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Oil Tube. (Non Collapsible)
Sold Each.
x4 Required Per Car.

Fits:
Porsche 911 911 2.0L 1965>>1969
Porsche 911 1970>>1989
Porsche 964 1989>>1994
Porsche 993 1994>>1998

Diagram Ref No 13

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90110735101

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