Oil Coolers / Radiators / Heat Exchangers
High-Performance Core Technology
50mm Core vs. OEM 45mm
15 Rows of Turbulated Tubes, 16 Rows of Fins (Same as OEM Spec)
Innovative Square Fin Design (Stronger, Better Performance, Less Clogging)
~10% Better Performance (Wind Tunnel Tested)
No Increase in Pressure Drop
Fits:
Porsche 911 3.2L / 3.0L 1984-89 - Direct Fit
Porsche 930 3.3L - Direct Fit
Porsche 911 / 930 1965 - 1983 Retrofit Capable
Diagram Ref No 13
Cross reference numbers
93020705302, 93020705304
CSF is proud to announce the release of its highly anticipated Porsche 911/930 Turbo right fender oil cooler. CSF's new release brings OEM tier-1 quality, innovative features, and value to the platform's replacement and performance aftermarket (directly replaces OEM part number 930 207 053 02 and 930 207 053 04).
A close-up of the high-performance CSF core vs. a 35+ year old oil cooler that it is replacing. CSF's core has an innovative square fin design which helps alleviate clogging. It also increases performance and strength due to more surface area contact with the tubes.
M30 x 1.5 High-Flow Fittings
OEM Style, Machined In-House
17.5mm ID "Widemouth" Design vs. 14.5mm ID of the OEM Fittings
Stainless Steel w/ Copper Crush Washer for Increased Strength and Durability vs. OEM Mild Steel
Deeper Plunge for More Volume
50% Greater Flow Capacity for Maximum Performance
Comparison between CSF's high-flow fittings w/ 17.5mm ID widemouth design vs. the OEM 14.5mm ID design
M22 x 1.5 Inlet/Outlet Connections
Internal Radius for Maximum Flow
Optimized to Also Accept AN-16 Connections for Increased Versatility and Setup Configurations
CSF's M22 x 1.5 inlet/outlet feature improved internal radius connections for maximum flow of oil into and out of the oil cooler.
Temperature Sender Combination Mounting Boss
Three Fittings Included
Threaded Plug (For Use With No Fan)
M14 x 1.5P Adapter (For Use With OEM Fan)
3/8-18 NPTF Adapter (For Use With SPAL/Modern Fan)
1/2-14 NPTF design to accommodate the included three fittings
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93020705304
The product you are viewing cross references to these numbers
- 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)
The Porsche 93020723900 / 93020723901 / 93020723902 Bonded Rubber Buffers are factory-original components designed to mount and stabilize the oil cooler assembly in air-cooled Porsche 911 and Turbo models. Each mount uses a precision-bonded rubber and steel design that isolates vibration and absorbs engine movement, protecting the oil cooler and its lines from stress and damage.
Sold individually, 3 required per car
Fits:
Porsche 911 1984 - 1989
Diagram Ref No 14.
Located between the oil cooler housing and the chassis or engine bracket, these buffers play a vital role in maintaining correct alignment and reducing vibration throughout the cooling system. Over time, exposure to heat, oil, and vibration can cause the rubber to harden or crack. Replacing with genuine Porsche parts restores factory stability, vibration isolation, and long-term reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93020723902
The product you are viewing cross references to these numbers
- 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)
This replacement buffer is a high-quality replacement for the factory bonded-rubber mounts used to support the oil cooler assembly in air-cooled Porsche engines. It helps isolate vibration, maintain correct alignment, and protect the cooler and adjoining hardware.
Sold each, required 3 per car.
Fits:
Porsche 911 1984 - 1989
Diagram Ref No 14.
This is a rubber buffer or mount (often bonded to metal inserts) used to cushion and secure the oil cooler assembly relative to the engine or chassis. It absorbs vibration, prevents metal-to-metal contact, and keeps the cooler in its correct position. It helps avoid stresses on oil cooler brackets, lines, and mating surfaces by providing a flexible mounting point.
Replaces: Porsche 930.207.239.00 / 930.207.239.01 / 930.207.239.02
Position: Between oil cooler and engine or chassis mount — isolates vibration and supports alignment
Function: Absorbs vibration and engine movement, prevents stress on oil cooler lines and brackets
Installation: Direct-fit OE replacement — install as a set for best results
Maintenance Tip: Replace when rubber hardens, cracks, or separates from metal housing
Over time, the rubber in the buffer mount degrades due to heat, oil exposure, ozone, vibration, and fatigue. It may harden, crack, shrink, or separate from its bonded metal insert. A failed mount lets the oil cooler shift or vibrate more than designed, putting strain on cooler hoses, brackets, and mounting flanges — potentially leading to leaks or damage. Excessive vibration may cause noise, misalignment, or premature fatigue of supporting parts. You should replace this buffer when you notice damage or deterioration, when removing or servicing the oil cooler, or as preventive maintenance on high-mileage engines.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93020723902
The product you are viewing cross references to these numbers
- 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 1984-89
Click 'Zoom in' for large parts diagram.
Diagram Ref No 31.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93020735300
The product you are viewing cross references to these numbers
- 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 1980>>
Click 'Zoom in' for large parts diagram.
Diagram Ref No 13C
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90002500703
The product you are viewing cross references to these numbers
- 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 1984-89
Click 'Zoom in' for large parts diagram.
Diagram Ref No 28.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93020736100
The product you are viewing cross references to these numbers
- 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 930 Turbo 1977-89
Diagram Ref No 22
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010723302
The product you are viewing cross references to these numbers
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits:
Porsche 930 Turbo 1977-89
Diagram Ref No 22
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010723302
The product you are viewing cross references to these numbers
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
8110
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)
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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
8111
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)
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.