Oil Radiators / Heat Exchangers

Universal dual-pass oil cooler with direct fitment for Porsche 911 center front oil cooler (RS Style).
Custom end tanks with a 45° chamfer
M22 x 1.5 connections - 22" L x 4.75" H x 2.25" W
Dual pass for increased oil cooling

Fits
911/930 models up to 1989

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

These new oil coolers have custom end tanks with a 45° chamfered front angle, allowing them to fit flush inside '73-style RS/RSR bumpers. The fittings are pointed straight back. For best airflow and highest performance, CSF recommends cutting the front tub to allow for proper air flow, exiting behind the oil cooler and underneath the vehicle. Cutting the front tub will also give clearance to allow adding a rear fan shroud to pull more air through the cooler at slower speeds or while idling

Product Features:

•High Efficiency & Rugged Durability Bar/Plate Design

• M22 x 1.5 Inlet/Outlet Connections
• "Aero-Flow" Bar Design for Lightweight, Strength, and Maximum Flow
• Triangular flush mounting bolts on both top & bottom (M8x1.25)
• Satin Black Finish for Extreme Protection Against Corrosion and Debris
• Pressure Tested at 120psi

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8201

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Universal single-pass oil cooler with direct fitment for Porsche 911 center front oil cooler (RS Style).
Custom end tanks with a 45° chamfer
M22 x 1.5 connections - 22" L x 4.75" H x 2.25" W

Fits:
Porsche 911/930 models up to 1989

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

These new oil coolers have custom end tanks with a 45° chamfered front angle, allowing them to fit flush inside '73-style RS/RSR bumpers. The fittings are pointed straight back. For best airflow and highest performance, CSF recommends cutting the front tub to allow for proper air flow, exiting behind the oil cooler and underneath the vehicle. Cutting the front tub will also give clearance to allow adding a rear fan shroud to pull more air through the cooler at slower speeds or while idling

Product Features:

•High Efficiency & Rugged Durability Bar/Plate Design

• M22 x 1.5 Inlet/Outlet Connections
• "Aero-Flow" Bar Design for Lightweight, Strength, and Maximum Flow
• Triangular flush mounting bolts on both top & bottom (M8x1.25)
• Satin Black Finish for Extreme Protection Against Corrosion and Debris
• Pressure Tested at 120psi

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8202

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Cover plate for oil cooler, RIGHT, incl gaskets.

Fits:
Porsche 911S 2.0 1969
Porsche 911S 2.2 1970-71

Diagram ref no 18

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90110708500

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Cover plate for oil cooler, RIGHT



Fits:
Porsche 911S 2.0 1969-71
Porsche 911S 2.2 1969-71

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

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90110708500

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Radiator oil cooler high-performance core. Porsche 911 / 911 turbo

OEM+ / High-Performance recreation of the original Behr Oil Cooler
CNC Machined mounting plate with helix design for strength and pocketed for weight savings
Modern Tube & Fin core with lower pressure drop and higher heat dissipation than the original
Stainless Steel Fittings for late model slip-on style (72-89) and early threaded style (65-71) with upgraded M30 “Widemouth” Design for improved flow
All OEM Behr features replicated on the billet mounting plate and cooler case
Comes standard with modern Cerakote titanium finish (additional heat dissipation) – modern interpretation of the OEM Behr finish
Optimized ID and flow characteristics of oil pipe for maximum oil flow through the vehicle’s oil system
Complete drop-in fit, absolutely no modifications to install

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)  

Diagram Ref No 8

After 2+ years of development and 4 rounds of prototypes, the world debut of the CSF Porsche 911/930 Engine Oil Cooler at Rennsport Reunion 2023 was met with resounding enthusiasm. Air-cooled enthusiasts know the struggles associated with the oil cooler located on the engine block of the old flat six motor. CSF’s highly anticipated new release is arguably the most important modern engine upgrade to be released for the 911 in years.
While the original design was effective at the time, they have not aged well. On top of that, there have been no updates to the design and original replacement units can be hard to come by. When the CSF 911 was being built, CSF realized this was a much needed part for the air-cooled community and set out to design something special.

The old original coolers aren’t the only issue though. CSF has gotten many first hand reports of brand new OE coolers from Porsche’s revamped “Porsche Classic” Catalogue leaking within a few months of installation. Apparently the new items available from Porsche are not built as well as the original Behr coolers. CSF has now brought to market a modern OEM+ solution to this vintage design.

The high-performance core uses 7 cooling tubes with 8 rows of fins. Between the ultra efficient fin design and high flow tubes, the CSF cooler is ~10% more efficient than a brand new OE unit and up to 25% more efficient than a used unit.

Because the base plate of the cooler is also a common problem area, CSF sought to improve this area as much as possible. Instead of the original cast design, the CSF cooler uses a CNC machined billet aluminum plate. This offers a perfectly flat mounting surface which is both stronger and more resistant to warping over time. You’ll also notice a special helix design which adds strength while keeping weight at a minimum.

Each unit is Individually Leak and Pressure Tested with a 10 year warranty
New OEM coolers from Porsche are extremely scarce/hard to source and cost $1,300+

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91110704102

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Oil cooler distance bushing.


Fits:
Porsche 912 1965-69

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

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6161075420Y

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Oil cooler distance bushing.



Fits:
Porsche 912 1965-69

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

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6161075420Y

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Oil cooler tester for Porsche 911

No more guessing, wondering, or hoping about your 911 engine mounted oil coolers. SR009, precisely fabricated from 6061 aluminum, allows you to easily, quickly, and simply test your cooler for leaks. This tool is a must to pressure test all coolers (1965-1989) before re-installation. This high-quality tool is anodized for years of service and includes a liquid filled gauge, Schrader valve, seals and hardware. Order one now to avoid the mess of a leaky cooler and the headache of replacing a cooler on an otherwise fine engine.

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SR009

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Radiator engine oil cooler front "Snake Type".
Radiator fits in the front under the wing.



Fits:
Porsche 911 2.7 08/73-07/74
Porsche 911 2.7 RS 08/72-07/73

Click 'Zoom in' for large parts diagram.
Diagram ref no 22

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91110704700

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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.       

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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.

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90110704103

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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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