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Gearbox Oil Cooler
Bonded Rubber Bush M6 20x20 –
Multi-Application Mounting Bush
Sold each
High-quality bonded rubber bush M6 20x20 designed for a wide range of Porsche models including 986 Boxster, 996, 964, 968, and 928.
This versatile mounting bush is used in multiple engine bay
and chassis applications, including air pump mounting (986 Boxster and 996),
gearbox oil cooler mounting (928), and fuel filter mounting (964 and
968).
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 964 (911) C2 Speedster 1993
- Porsche 964 (911) C4 Speedster 1993
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928 GTS 5.4L 1992-95
Diagram ref no 3
Manufactured to OEM specifications, this bonded rubber mount provides excellent vibration isolation while ensuring secure positioning of critical components.
Key Features
• Bonded rubber bush M6 20x20
• Suitable for Porsche 986, 996, 964, 968, and 928
• Multi-application mounting solution
• Used for air pump, gearbox cooler, and fuel filter
• Reduces vibration and movement
• Durable rubber-metal bonded construction
• OEM-style fit and performance
Function and Purpose
This bush is designed to support and isolate mounted components.
It helps to:
• Secure components in position
• Absorb engine and drivetrain vibration
• Protect sensitive parts from stress and fatigue
• Maintain correct alignment
• Improve overall system reliability
Why Replace Rubber Mounting Bushes
Rubber components degrade over time due to heat and exposure.
Common issues include:
• Cracked or perished rubber
• Excessive movement or looseness
• Increased vibration transfer
• Potential damage to mounted components
Replacing worn bushes restores stability and prolongs
component life.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970346500
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928GTS 5.4L 1992-95
Shop Securely
12 Month Warranty
Worldwide Delivery
Express Delivery
Bonded Rubber Bush M6 20x20 –
Multi-Application Mounting Bush
Sold each
High-quality bonded rubber bush M6 20x20 designed for a wide range of Porsche models including 986 Boxster, 996, 964, 968, and 928.
This versatile mounting bush is used in multiple engine bay
and chassis applications, including air pump mounting (986 Boxster and 996),
gearbox oil cooler mounting (928), and fuel filter mounting (964 and
968).
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 964 (911) C2 Speedster 1993
- Porsche 964 (911) C4 Speedster 1993
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928 GTS 5.4L 1992-95
Diagram ref no 3
Manufactured to OEM specifications, this bonded rubber mount provides excellent vibration isolation while ensuring secure positioning of critical components.
Key Features
• Bonded rubber bush M6 20x20
• Suitable for Porsche 986, 996, 964, 968, and 928
• Multi-application mounting solution
• Used for air pump, gearbox cooler, and fuel filter
• Reduces vibration and movement
• Durable rubber-metal bonded construction
• OEM-style fit and performance
Function and Purpose
This bush is designed to support and isolate mounted components.
It helps to:
• Secure components in position
• Absorb engine and drivetrain vibration
• Protect sensitive parts from stress and fatigue
• Maintain correct alignment
• Improve overall system reliability
Why Replace Rubber Mounting Bushes
Rubber components degrade over time due to heat and exposure.
Common issues include:
• Cracked or perished rubber
• Excessive movement or looseness
• Increased vibration transfer
• Potential damage to mounted components
Replacing worn bushes restores stability and prolongs
component life.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970346500
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928GTS 5.4L 1992-95
Shop Securely
12 Month Warranty
Worldwide Delivery
Porsche Gearbox Oil Coolers | Maintain Optimal Transmission Temperatures for Peak Performance
A gearbox oil cooler is essential for regulating transmission temperature and ensuring consistent performance under demanding driving conditions. By circulating and cooling the gearbox oil, it prevents overheating, protects internal components, and extends the lifespan of your Porsche’s transmission.
At Design911, we supply high-quality gearbox oil coolers engineered to meet or exceed original design standards. Built from robust aluminium and high-efficiency cores, our coolers deliver superior thermal management and fluid flow — ideal for both road and track applications.
Whether you’re servicing your Porsche, replacing a leaking cooler, or upgrading for enhanced performance, our gearbox oil coolers ensure reliable cooling and protection for every mile.
What Do Gearbox Oil Coolers Do?
The gearbox oil cooler dissipates the heat generated during transmission operation, maintaining stable oil temperatures for optimal performance and protection.
Core Functions:
- Regulates gearbox oil temperature to prevent overheating.
- Ensures consistent lubrication and hydraulic performance.
- Protects seals, bearings, and internal components from heat damage.
- Enhances efficiency and performance under load.
- Extends the overall lifespan of the gearbox system.
Without a properly functioning oil cooler, the gearbox can overheat — leading to fluid breakdown, gear wear, and costly transmission damage.
Why Do Gearbox Oil Coolers Fail or Wear Out?
Gearbox oil coolers operate under high pressure and extreme heat. Over time, these conditions can cause blockages, corrosion, or leaks that reduce cooling efficiency.
Common Causes of Failure Include:
- Corrosion or internal degradation from moisture or contaminated oil.
- Leaks caused by damaged fittings or cracked cores.
- Blockages restricting oil flow and heat transfer.
- External damage from road debris or impact.
- Deterioration of hoses and seals over time.
When an oil cooler fails, symptoms can include rising gearbox temperatures, oil leaks, fluid contamination, or transmission warning lights — all signs that replacement is required.
Why Replace Your Porsche Gearbox Oil Cooler?
Replacing or upgrading your gearbox oil cooler is essential to maintain safe operating temperatures, prevent gearbox wear, and ensure consistent performance. Performance-grade oil coolers are especially beneficial for track, towing, or high-torque applications.
Key Benefits:
- Restores efficient gearbox temperature regulation.
- Prevents overheating and oil degradation.
- Improves transmission longevity and reliability.
- Reduces thermal stress on internal gearbox components.
- Designed for Porsche 911, Cayman, Boxster, Panamera, and PDK models.
- Ideal for standard servicing, rebuilds, and performance upgrades.
Regular inspection and timely replacement of the gearbox oil cooler help maintain optimal performance and avoid major gearbox repair costs.
Highlights
- Premium Porsche gearbox oil coolers engineered for reliability.
- Efficient heat dissipation for manual, Tiptronic, and PDK gearboxes.
- Durable aluminium construction with high-performance cores.
- Prevents overheating and extends gearbox lifespan.
- Perfect for maintenance, restoration, or motorsport applications.
- Direct-fit replacements compatible with a wide range of Porsche models.
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed