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Oil Coolers / Radiators / Heat Exchangers
This radiator oil cooler rubber mount is an replacement rubber isolator designed to support the radiator oil cooler on classic Porsche 911 models 1978–1989.
It cushions and secures the radiator oil cooler within the engine bay, reducing vibration and noise while helping maintain correct positioning of the cooler assembly. It matches original factory specifications so it installs directly into the intended mounting points with no modification required.
Sold each.
Fits:
Porsche 911 1978 - 1989
Diagram ref no 13B
The rubber mount absorbs engine and road vibration, helping to isolate the oil cooler from harsh movement and protect it from stress and fatigue. It keeps the cooler properly aligned, preventing undue strain on hoses, fittings, and brackets.
Built to support the weight of the radiator oil cooler and dampen dynamic forces, this mount mitigates vibration transfer throughout the engine bay. It ensures the oil cooler remains stable under thermal expansion, engine torque, and chassis motion while helping minimise noise and wear.
Over time, rubber mounts deteriorate from heat, age, and exposure to oil and road contaminants. A worn or broken mount can allow excessive cooler movement, leading to hose fatigue, oil leaks, and compromised cooling performance. Replacing it with an OE-match mount restores proper support and prolongs the life of your oil cooler system.
When to replace:
• Visible cracks, splits, or deformation in the rubber
• Loose or sagging radiator oil cooler
• Increased vibration or noise from the engine compartment
• During oil cooler removal or engine work
• As part of preventive maintenance
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970326300
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 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Related, superseded, cross reference or alternative numbers for comparison.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 lubrication oil pump 911 1978-83 104-00
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engine lubrication radiator coil 911 1978-83 104-05
-
k-jetronic I 911 TURBO 930.60/61, 930.62/66 1978-83 107-20
-
k-jetronic III 911 TURBO 1978-83 107-35
-
engine lubrication oil pump lines 911 1987-89 104-00
-
engine lubrication oil cooler 911 1987-89 104-05
-
K-JETRONIC I 911 TURBO 930.66/68 1987-89 107-20
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K-JETRONIC III 911 TURBO 930.66/68 1987-89 107-35
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special model flatnose design oil cooler centre 911 TURBO M506 1988 ONWARDS 180-10
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Engine lubrication oil pump lines 911 1984-86 104-00
-
engine lubrication oil cooler 911 1984-86 104-05
-
K-JETRONIC I 911 TURBO 930.66/68 1984-86 107-20
-
K-JETRONIC III 911 TURBO 930.66/68 1984-86 107-35
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.