Oil Pipes & Hoses

Oil pipe oil tank to thermostat
This OE Match oil pipe is a replacement engine oil line running from the oil tank to the thermostat on Porsche 911 models from 1974 to 1989. It is designed to match the original-style fitment and function, helping maintain correct oil flow through the external oil cooling system.
Fits:
Porsche 911 3.0L 1974 - 1983
Porsche 911 3.2L 1984 - 1989
Diagram Ref No 17
Previous Porsche Part Numbers: 91110773010 / 91110773011
The oil pipe carries engine oil between the oil tank and the thermostat as part of the Porsche 911 dry-sump oil system. The thermostat controls oil flow to the external oil cooler circuit when the oil reaches operating temperature, helping regulate engine oil temperature and protect the engine during driving.
Functions
•  Replaces the oil pipe from oil tank to thermostat
•  Supports correct engine oil circulation
•  Forms part of the external oil cooling system
•  Helps maintain stable engine oil temperature
•  Supports dry-sump oil system operation
•  Replaces corroded, leaking, crushed, blocked, or damaged original oil pipes
•  OE Match replacement for Porsche 911 oil system repair and restoration.
Why Replace This Part?
External oil pipes are exposed to road dirt, heat, vibration, corrosion, oil pressure, and age-related wear. Over time, the pipe can corrode, leak, become crushed, seize at the fittings, or suffer damage during removal or repair work. A faulty oil pipe may cause oil leaks, reduced oil flow, poor cooling performance, or oil system reliability issues. Replacing the pipe helps restore secure oil transfer and dependable engine cooling.
When to Replace This Part
•  Oil leaks are visible around the pipe or fittings
•  The pipe is corroded, crushed, kinked, blocked, or damaged
•  Oil thermostat or oil tank connections are being serviced
•  External oil lines are being refreshed during restoration
•  Fittings are seized or damaged during removal
•  Engine oil cooling performance is reduced
•  The vehicle is undergoing Porsche 911 oil system restoration
Where it fits on the car
This oil pipe fits between the oil tank and oil thermostat on Porsche 911 models. It forms part of the external engine oil circulation and cooling system.

Related reference numbers
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91110773013

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Oil pipe support bracket.
Fits:
Porsche 911 1970-1989
Click 'Zoom in' for large parts diagram.
Diagram ref no 19

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91120723700

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Oil Pipe Support Clamp 1100 22/15
Fits:
Porsche 911 1972-89
Diagram Ref No 26

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99951108002

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Oil Pipe Support Clamp 1100 2 X 22/15
Fits:
Porsche 911 1972-89
Click 'Zoom in' for large parts diagram.
Diagram Ref No 25.

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99951108402

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Oil Pipe Support Clamp 1100 22/15 
Sold each

High-quality oil pipe support clamp 1100 22/15 designed for securing oil and air conditioning pipes across multiple Porsche models including 911, 911 Turbo, 924 and 964.

Fits:

• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 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 924 2.0L 1976-79
• Porsche 924 2.0L 1980-85
• Porsche 924 Turbo 2.0L 1979-81
• Porsche 924 Turbo 2.0L 1982-84
• Porsche 924 Carrera GT 2.0L 1981
• Porsche 924 Carrera GTS 2.0L 1982

Diagram Ref No 26

This versatile clamp is used to secure oil pipes, air conditioning pipes, and airbox pipes, ensuring correct routing and stability within the engine bay. It plays a vital role in preventing vibration, wear, and potential damage to critical systems.

Manufactured to OEM specifications, this clamp provides a precise fit, long-lasting durability, and resistance to corrosion. Supplied individually, it is ideal for maintenance, repair, or restoration of Porsche engine bay systems.

Key Features

• Pipe support clamp size 1100 22/15
• Suitable for Porsche 911, 911 Turbo, 924, 964, and 970 Panamera
• Part number 99951108002
• Multi-use: oil pipes, AC pipes, airbox pipes
• Ensures secure pipe mounting and routing
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually

Function and Purpose

This clamp is designed to securely support and retain pipes.

It helps to:
• Hold oil, AC, and airbox pipes in position
• Maintain correct routing and alignment
• Prevent vibration-related wear and damage
• Protect surrounding components
• Ensure long-term system reliability

Why Replace Pipe Clamps

Clamps can degrade over time due to heat and exposure.

Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Pipe movement or misalignment
• Increased risk of leaks or damage

Replacing worn clamps ensures secure installation and protects system components.

Related reference numbers
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99951108002

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Oil Pipe Tank to Engine. 1st section.
Fits:
Porsche 911 1973-74
Click 'Zoom in' for large parts diagram.
Diagram Ref No 20.

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91110772800

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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.

Related reference numbers
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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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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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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 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. 

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91120730200

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Oil tube seal for crankcase distribution oil pipes.
Sold each.
Fits:
Porsche 911 1970-89
Porsche 964 1989-94
Porsche 993 1994-98
Click 'Zoom in' for large parts diagram.
Diagram Ref No 14.

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9997071124A

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Oil tube seal for crankcase distribution oil pipes.
Round oil return tube O-ring used at the outer ends of the crankcase oil distribution / return tubes. Each tube uses two seals, and a complete engine typically requires multiple O-rings depending on tube type and configuration (often eight per engine on many 911/964/993 applications).
Sold each.
Fits:
Porsche 911 1970 - 1989
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram ref no 14.
This seal provides a leak-tight joint between the oil return tube and the crankcase or associated oil galleries. By sealing the tube ends, it:
• Prevents engine oil leaks at the tube junctions.
• Helps maintain correct oil circulation and system pressure.
• Keeps oil off the heat exchangers, exhaust and underside of the engine, reducing smells, smoke and contamination.
With age, heat and constant oil exposure, original O-rings can harden, flatten, crack or shrink. When they fail:
• Oil begins to weep or drip from the crankcase / tube junctions.
• The underside of the engine, heat exchangers and exhaust can become oil-soaked, causing burning smells and smoke.
• You may see oil spots under the car and gradual oil loss between services.
Replacing tired seals is a low-cost, high-impact fix that significantly reduces leaks and keeps the engine bay cleaner.
When to Replace
Consider replacing these oil tube seals if:
• You see oil leaks or dampness around the oil return tubes or crankcase unions.
• The engine is undergoing an oil return tube replacement (solid or collapsible).
• You’re performing an engine refresh, top-end rebuild, or major oil system service.
• The car shows persistent oil drips on the floor despite other seals being renewed.

Related reference numbers
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9997071124A

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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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