Oil Coolers / Radiators / Heat Exchangers

Radiator Engine Oil Cooler Front "Snake Type" 

Maintain the correct operating temperature of your classic air-cooled Porsche with this OE Match Front Engine Oil Cooler, commonly known as the Snake Type or Trombone Oil Cooler. Designed as a direct replacement for the original factory oil cooler fitted to Porsche 911 models from 1970-1973, this OE-quality component restores efficient engine oil cooling while preserving the originality of your vehicle.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Diagram ref no 22

Unlike later finned oil coolers, the trombone oil cooler uses a continuous loop of oil pipe mounted in the front wheel arch. As airflow passes over the curved tube, excess heat is dissipated from the engine oil before it returns to the engine. Its distinctive looped design earned it the nickname "Trombone Oil Cooler", and it remains an iconic feature of early long-wheelbase Porsche 911 models.

Manufactured to OE specifications, this replacement oil cooler offers excellent fitment, corrosion resistance and long-term durability, making it ideal for restorations, maintenance or replacing damaged original units.

What Does the Oil Cooler Do?

Engine oil performs two vital functions in an air-cooled Porsche: lubricating internal engine components and carrying away excess heat.

The front-mounted Snake Type oil cooler helps to:

• Reduce engine oil temperature.
• Improve lubrication under demanding driving conditions.
• Protect internal engine components from excessive heat.
• Maintain stable oil viscosity.
• Increase engine reliability and longevity.
• Support consistent engine performance during warm weather and spirited driving.

Although simple in design, the trombone cooler provides a significant improvement in oil temperature control compared to engines without a front-mounted oil cooler.

Why Do Oil Coolers Need Replacing?

After decades of service, oil coolers can become damaged or less effective due to:

• External corrosion.
• Stone impacts and road debris.
• Internal contamination.
• Oil leaks caused by corrosion or physical damage.
• Accident damage.
• Previous poor repairs or deformation of the cooling loop.

Replacing a damaged oil cooler helps maintain correct oil temperatures while preventing potentially expensive engine damage caused by oil loss.

Symptoms of a Failing Oil Cooler

Common warning signs include:

• Visible oil leaks around the cooler.
• Rising engine oil temperatures.
• Oil residue around the front wheel arch.
• Corroded or damaged cooling tube.
• Reduced cooling efficiency.
• Oil pressure concerns caused by oil loss.
• Physical damage from road debris.

If any oil leakage is present, the cooling system should be inspected immediately.

When Should the Trombone Oil Cooler Be Replaced?

Replacement is recommended when:

• Oil leaks develop.
• Corrosion weakens the cooling tube.
• Accident damage has occurred.
• Restoring a classic Porsche to factory specification.
• Replacing damaged front oil lines.
• Carrying out a complete oil cooling system overhaul.

Replacing ageing cooling components helps maintain reliable engine temperature control and protects your investment.

Why Choose an OE Match Oil Cooler?

Our OE Match Snake Type oil cooler has been engineered to closely replicate the original Porsche component.

Benefits include:

• Correct Trombone (Snake Type) design.
• OE-quality construction.
• Precision-formed cooling loop.
• Corrosion-resistant finish.
• Excellent oil flow characteristics.
• Straightforward installation using factory mounting points.
• Ideal for restorations and originality-focused vehicles.       

Related reference numbers
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91110704700

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Radiator engine oil cooler with screw socket
Radiator type fits in engine compartment.

Fits:
Porsche 911 1965-71

Diagram ref No 8

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90110704103

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Radiator Engine Oil Cooler With Screw Socket.

The OE Match Radiator Engine Oil Cooler with Screw Socket is a premium-quality replacement engine oil cooler designed to regulate engine oil temperature on compatible Porsche models. Manufactured to OE specifications for fit, cooling efficiency and durability, this oil cooler helps maintain optimum oil temperatures by dissipating excess heat, ensuring consistent lubrication and protecting critical engine components under all driving conditions.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)  

Diagram Ref No 8

Manufactured from high-quality aluminium with precision-engineered cooling fins and an integrated screw socket connection, the oil cooler is designed to provide excellent heat transfer while withstanding high oil pressures, thermal cycling and engine vibration. Its direct OE-style fitment ensures straightforward installation and reliable, leak-free operation, making it ideal for both routine maintenance and engine restoration projects.  

What This Product Does:

• Dissipates heat from the engine oil.
• Maintains optimum engine oil operating temperature.
• Helps preserve correct oil viscosity.
• Protects internal engine components from excessive heat.
• Supports efficient engine lubrication.
• Improves engine reliability during normal and high-performance driving.
• Provides secure oil connections via the integrated screw socket.
• Forms an essential part of the engine lubrication and cooling system.

Symptoms Of Wear Or Failure:

• Engine oil leaks around the cooler or connections.
• Visible corrosion or physical damage to the cooler.
• Elevated engine oil temperatures.
• Engine overheating under load.
• Oil residue around the oil cooler assembly.
• Reduced engine performance due to excessive oil temperatures.
• Low engine oil level caused by leaks.
• Contaminated cooling fins restricting airflow.
• Oil pressure fluctuations caused by oil loss.
• Premature engine wear due to inadequate oil cooling.

Why Replacement Matters:

• The engine oil cooler is continuously exposed to high oil pressures, extreme temperatures, road debris and environmental contaminants. Over time, corrosion, blocked cooling fins or internal deterioration can reduce its cooling efficiency or result in oil leaks.
• A leaking or inefficient oil cooler can cause engine oil temperatures to rise, reducing lubrication performance and increasing wear on bearings, pistons, camshafts and other critical engine components. Continued operation with overheated or leaking engine oil can lead to accelerated engine wear and potentially costly mechanical damage.
• Replacing a worn or damaged engine oil cooler restores efficient oil cooling and reliable lubrication performance. The OE Match replacement provides factory-style fitment, high-quality aluminium construction, integrated screw socket connections and long-lasting durability, helping maintain engine protection, performance and reliability throughout the life of your Porsche.

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

90110704103

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Radiator engine oil cooler.
Radiator type fits in engine compartment.



Fits:
Porsche 911 1972-89

Click 'Zoom in' for large parts diagram.
Diagram Ref No 8.

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91110704102

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Radiator engine oil cooler.
This radiator type oil cooler fits in the engine compartment on Porsche 911 models. It forms part of the engine oil cooling system and should be installed according to the factory oil cooler layout and sealing arrangement.

Fits:
Porsche 911 1972 - 1989

Diagram ref no 8.

The engine oil cooler helps reduce engine oil temperature by allowing heat from the oil to transfer through the cooler core. Correct oil cooling is essential on air-cooled Porsche engines, as the oil plays an important role in lubrication, heat control, and long-term engine reliability.

Functions
•  Replaces the engine compartment oil cooler
•  Helps regulate engine oil temperature
•  Supports correct lubrication and cooling performance
•  Assists in protecting the engine from excessive oil temperatures
•  Helps maintain stable operation during normal and demanding driving
•  Replaces leaking, blocked, corroded, or damaged original oil coolers
•  OE Match replacement for engine oil cooling system repair.

Why Replace This Part?
Engine oil coolers can become blocked, corroded, damaged, or leak with age, heat cycling, vibration, and long-term oil exposure. A faulty oil cooler can cause oil leaks, reduced cooling efficiency, higher engine temperatures, contaminated cooling fins, or poor lubrication performance. Replacing the oil cooler helps restore effective oil temperature control and supports reliable engine operation.

When to Replace This Part
•   The oil cooler is leaking engine oil
•   Oil residue is visible around the cooler or engine compartment area
•   Engine oil temperatures are higher than normal
•   The cooler core is blocked, corroded, or damaged
•   The engine is being rebuilt or resealed
•   Oil cooling system components are being serviced
•   The vehicle is undergoing Porsche 911 engine restoration or preventative maintenance

Related reference numbers
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91110704102

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Radiator oil cooler with threaded connector, M26x1.5, Front.



Fits:
Porsche 911 S 1969-1971

Click 'Zoom in' for large parts diagram.
Diagram Ref No 17

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90110704603

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Radiator oil cooler with threaded connector, M26x1.5, Front.



Fits:
Porsche 911 S 1969-1971

Click 'Zoom in' for large parts diagram.
Diagram Ref No 17

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90110704603

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Radiator Oil cooler with threaded connector, M30x1.5, Front.



Fits:
Porsche 911 S 1973

Click 'Zoom in' for large parts diagram.
Diagram Ref No 17

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91110704602

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Universal dual-pass oil cooler with direct fitment for Porsche 911 center front oil cooler (RS Style).
M22 x 1.5 connections - 24'L X 5.75'H X 2.16'W


RS style bar and plate oil coolers for air-cooled Porsche 911/930 models (up to 1989). This oil cooler is a direct-fit performance replacement for the original Porsche items but they can also be used as heavy duty universal units!

Product Features

• Heavy duty bar/plate core
• New Aero-flow bar design for low mass, strength and maximum airflow through the core
• Satin Black finish for protection against corrosion and debris
• Triangular flush mounting bolts on both top & bottom (M8x1.25)
• Slight 15 degree angle for connections (M22x1.5 female) with tapered, cast end-tanks
• 609mm Length x 54.6mm Width x 146mm Height

Cross reference numbers
91110705101

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8110

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Universal single-pass oil cooler with direct fitment for Porsche 911 center front oil cooler (RS Style).
M22 x 1.5 connections - 24'L X 5.75'H X 2.16'W

RS style bar and plate oil coolers for air-cooled Porsche 911/930 models (up to 1989). This oil cooler is a direct-fit performance replacement for the original Porsche items but they can also be used as heavy duty universal units!

Product Features:

• Heavy duty bar/plate core
• New Aero-flow bar design for low mass, strength and maximum airflow through the core
• Satin Black finish for protection against corrosion and debris
• Triangular flush mounting bolts on both top & bottom (M8x1.25)
• Slight 15 degree angle for connections (M22x1.5 female) with tapered, cast end-tanks
• 609mm Length x 54.6mm Width x 146mm Height

Cross reference numbers
91110705101

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8111

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