Oil Coolers / Radiators / Heat Exchangers
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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
8201
The product you are viewing cross references to these numbers
- 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)
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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
8202
The product you are viewing cross references to these numbers
- 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)
Fits:
Porsche 911S 2.0 1969
Porsche 911S 2.2 1970-71
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110708500
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911S 2.0 1969-71
Porsche 911S 2.2 1969-71
Click 'Zoom in' for large parts diagram.
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110708500
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911S / Carrera 2.7 1972-73
Click 'Zoom in' for large parts diagram.
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91120702706
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911S / Carrera 2.7 1972-73
Click 'Zoom in' for large parts diagram.
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91120702706
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911S / Carrera 2.7 1972-73
Diagram ref no 19
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91120702905
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911 1965-71
Previous OE part number:
- 90110736110
Click 'Zoom in' for large parts diagram.
Diagram Ref No 16.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110736111
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911 1965-71
Previous OE part number:
- 90110736110
Click 'Zoom in' for large parts diagram.
Diagram Ref No 16.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110736111
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911 1965-71
This part number has been superseded from previous numbers:
- 90110736400
- 90110736402
Click 'Zoom in' for large parts diagram.
Diagram ref No 15.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110736403
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911 1965-71
This part number has been superseded from previous numbers:
- 90110736400
- 90110736402
Click 'Zoom in' for large parts diagram.
Diagram ref No 15.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110736403
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911 - 1972 to 1989
Porsche 911 turbo - 1975 to 1989
Click 'Zoom in' for large parts diagram.
Diagram ref no 23
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951209100
The product you are viewing cross references to these numbers
- 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)

Fits:
Porsche 911 - 1972 to 1989
Porsche 911 turbo - 1975 to 1989
Click 'Zoom in' for large parts diagram.
Diagram ref no 23
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951209100
The product you are viewing cross references to these numbers
- 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)

Fits:
Porsche 911 2.7RS / 2.8 RSR - 1973
Porsche 911 G-Body backdates - 1974 to 1989
Kit Includes
Front bumper centre oil cooler
Oil cooler mounts, brackets and screws
Oil cooler pipe x 2
Oil pipe connector x 2
Modification and welding is required to the trunk front section.
The centre oil cooler can be added to the existing front wing oil cooler circuit.
Dimensions:
Total width (without connectors) = 58 cm
Height with connecting support: 12 cm
Depth: = 6,3 cm.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
11F-R130
The product you are viewing cross references to these numbers
- 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)
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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110704700
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
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
Diagram ref no 22
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110704700
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Engine Oil Coolers, Radiators & Heat Exchangers – Precision Cooling for Porsche Performance
The engine oil cooler and heat exchanger system plays a critical role in managing temperature within your Porsche’s engine. By transferring excess heat away from the oil and other fluids, these components ensure stable operating temperatures, consistent lubrication, and maximum engine longevity — especially under demanding performance conditions.
At Design911, we offer a full range of engine oil coolers, radiators, and heat exchangers for Porsche models old and new. Built from high-efficiency aluminium or reinforced composite materials, these components are designed to deliver superior cooling performance, durability, and perfect fitment — ensuring your Porsche performs at its best, on road or track.
Whether replacing a worn-out unit or upgrading for improved thermal efficiency, our oil cooling components provide reliable temperature control and enhanced performance.
What Do Engine Oil Coolers, Radiators & Heat Exchangers Do?
These components regulate oil and engine temperatures to maintain optimal performance and prevent overheating.
Core Functions:
- Dissipate
excess heat from the engine oil, coolant, or transmission fluid.
- Maintain
consistent oil viscosity and prevent breakdown under load.
- Protect
internal engine components from heat-related wear and failure.
- Improve overall performance efficiency during extended drives or track sessions.
Together, the oil cooler, radiator, and heat exchanger form an essential thermal management system, helping your Porsche run at peak performance while protecting vital components.
Why Do Oil Coolers & Heat Exchangers Fail?
Over time, exposure to heat cycles, vibration, and contaminants can lead to efficiency loss or complete failure.
Common Causes of Failure Include:
- Corrosion
or cracking from age or road debris impact.
- Internal
clogging caused by sludge or contaminated oil.
- Leaking
seals or fittings, reducing pressure and fluid efficiency.
- Thermal
fatigue, leading to reduced cooling capacity.
- Poor maintenance or coolant neglect, accelerating deterioration.
Symptoms of failure can include high oil temperatures, oil leaks, coolant contamination, or reduced engine performance, all of which signal the need for inspection or replacement.
Why Replace Oil Cooling Components?
Replacing a worn or leaking oil cooler, radiator, or heat exchanger is essential to preserve lubrication quality and prevent costly overheating damage. Our precision-fit, high-durability components restore proper cooling balance and reliability under all conditions.
Key Benefits:
- Restores efficient oil and fluid temperature regulation.
- Prevents overheating and engine wear.
- Improves reliability under heavy load or track use.
- Constructed from corrosion-resistant, high-performance materials.
- Direct-fit compatibility for classic and modern Porsche engines.
- Ideal for rebuilds, maintenance, and performance upgrades.
Upgrading or replacing your cooling system components helps ensure your Porsche’s engine stays efficient, durable, and ready for spirited driving.
Highlights:
- Comprehensive range of Porsche oil coolers, radiators, and heat exchangers.
- Precision-engineered for consistent temperature control.
- Constructed from lightweight, corrosion-resistant materials.
- Designed for reliability in both road and motorsport conditions.
- Improves lubrication and protects engine performance.
- Perfect for maintenance, rebuilds, or performance enhancements.