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Transmission Cooling
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99970346500
Product Information
Diagram ref no 3
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99970346500
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Product Information
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Related, superseded, cross reference or alternative numbers for comparison.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
99970346500
99970347740
99970322900
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- 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
Price: £21.00
In Stock - 24 Hour Dispatch
Shop Securely
12 Month Warranty
Worldwide Delivery
99970346500/1
Product Information
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970346500
The product you are viewing cross references to these numbers
Product Information
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
99970346500
99970347740
99970322900
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- 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
Price: £13.65
In Stock - 24 Hour Dispatch
Shop Securely
12 Month Warranty
Worldwide Delivery
99630707503
Product Information
Fits:
Porsche 996 Carrera 1998>>2001
Diagram Ref No 10
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99630707503
The product you are viewing cross references to these numbers
Product Information
Coolant Hose, Feed. Gearbox Oil Cooling.Fits:
Porsche 996 Carrera 1998>>2001
Diagram Ref No 10
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Related, superseded, cross reference or alternative numbers for comparison.
99630707503
99630707502
99630707501
99630707503
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Price: £296.24
Orderable - 14 to 28 Days
Shop Securely
12 Month Warranty
Worldwide Delivery
99630702001
Product Information
Fits:
Porsche 996 (911) Carrera 2 (1998 - 2001)
Porsche 996 (911) Carrera 4 (1999 - 2001)
Porsche 996 (911) Turbo (2001 - 2001)
Porsche 996 (911) GT3 (1999 - 2001)
Porsche 996 (911) GT2 (2001 - 2001)
Additional information: Only in combination with Tiptronic.
Click 'Zoom in' for large parts diagram.
Diagram ref no 1.
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99630702001
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Product Information
Gearbox oil cooler AFT basic plate. 18.64 x 3.53Fits:
Porsche 996 (911) Carrera 2 (1998 - 2001)
Porsche 996 (911) Carrera 4 (1999 - 2001)
Porsche 996 (911) Turbo (2001 - 2001)
Porsche 996 (911) GT3 (1999 - 2001)
Porsche 996 (911) GT2 (2001 - 2001)
Additional information: Only in combination with Tiptronic.
Click 'Zoom in' for large parts diagram.
Diagram ref no 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99630702001
99630701701
99630701700
99630702001
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
99630701701
Product Information
Fits:
Porsche 986 Boxster 1997-04 Tiptronic
Porsche 987 Boxster 2005-07 Tiptronic
Porsche 987C Cayman 2007-08 Tiptronic
Porsche 996 C2 / C4 >>2001 Tiptronic
Click 'Zoom in' for large parts diagram.
Diagram ref no 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99630701701
The product you are viewing cross references to these numbers
Product Information
Gearbox oil cooler AFT.Fits:
Porsche 986 Boxster 1997-04 Tiptronic
Porsche 987 Boxster 2005-07 Tiptronic
Porsche 987C Cayman 2007-08 Tiptronic
Porsche 996 C2 / C4 >>2001 Tiptronic
Click 'Zoom in' for large parts diagram.
Diagram ref no 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99630701701
99630701701
99630701700
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Price: £280.77
Orderable - 14 to 28 Days
Shop Securely
12 Month Warranty
Worldwide Delivery
99630701701/2
Product Information
Larger than standard. 15% larger than the original for better cooling.
Fits:
Porsche 986 Boxster 1997-04 Tiptronic
Porsche 987 Boxster 2005-07 Tiptronic
Porsche 987C Cayman 2007-08 Tiptronic
Porsche 996 C2 / C4 >>2001 Tiptronic
Diagram ref no 1.
The installation of a larger gearbox oil cooler for the Porsche 996, specifically for the Automatic Transmission Fluid (ATF), offers several significant benefits:
Enhanced Cooling Efficiency: A larger oil cooler increases the cooling capacity, allowing the ATF to dissipate heat more effectively. As a result, the transmission can operate at lower temperatures, preventing overheating and reducing the risk of fluid breakdown and premature wear on transmission components.
Extended Transmission Life: Lower operating temperatures due to improved cooling help prolong the lifespan of the transmission. Cooler ATF ensures that the internal components experience less stress and thermal degradation, contributing to a longer-lasting and more reliable gearbox.
Improved Performance: Optimal transmission temperature is essential for consistent and smooth gear shifts. With a larger oil cooler, the ATF maintains its viscosity and performance characteristics, promoting seamless gear changes and overall improved transmission performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99630701701
The product you are viewing cross references to these numbers
Product Information
Gearbox oil cooler ATF. Larger than standard. 15% larger than the original for better cooling.
Fits:
Porsche 986 Boxster 1997-04 Tiptronic
Porsche 987 Boxster 2005-07 Tiptronic
Porsche 987C Cayman 2007-08 Tiptronic
Porsche 996 C2 / C4 >>2001 Tiptronic
Diagram ref no 1.
The installation of a larger gearbox oil cooler for the Porsche 996, specifically for the Automatic Transmission Fluid (ATF), offers several significant benefits:
Enhanced Cooling Efficiency: A larger oil cooler increases the cooling capacity, allowing the ATF to dissipate heat more effectively. As a result, the transmission can operate at lower temperatures, preventing overheating and reducing the risk of fluid breakdown and premature wear on transmission components.
Extended Transmission Life: Lower operating temperatures due to improved cooling help prolong the lifespan of the transmission. Cooler ATF ensures that the internal components experience less stress and thermal degradation, contributing to a longer-lasting and more reliable gearbox.
Improved Performance: Optimal transmission temperature is essential for consistent and smooth gear shifts. With a larger oil cooler, the ATF maintains its viscosity and performance characteristics, promoting seamless gear changes and overall improved transmission performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99630701701
99630701701
99630701700
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Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Price: £125.00
In Stock - 24 Hour Dispatch
Shop Securely
12 Month Warranty
Worldwide Delivery
99630701701/1
Product Information
Fits:
Porsche 986 Boxster 1997-04 Tiptronic
Porsche 987 Boxster 2005-07 Tiptronic
Porsche 987C Cayman 2007-08 Tiptronic
Porsche 996 C2 / C4 >>2001 Tiptronic
Click 'Zoom in' for large parts diagram.
Diagram ref no 1.
Related reference numbers
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99630701701
The product you are viewing cross references to these numbers
Product Information
Gearbox oil cooler ATF.Fits:
Porsche 986 Boxster 1997-04 Tiptronic
Porsche 987 Boxster 2005-07 Tiptronic
Porsche 987C Cayman 2007-08 Tiptronic
Porsche 996 C2 / C4 >>2001 Tiptronic
Click 'Zoom in' for large parts diagram.
Diagram ref no 1.
Related reference numbers
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99630701701
99630701701
99630701700
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Price: £99.00
In Stock - 24 Hour Dispatch
Shop Securely
12 Month Warranty
Worldwide Delivery
98630750700
Product Information
Fits:
Porsche 928 (1978 to 1995)
Porsche 944/2 (1985 to 1991)
Porsche 968 (1992 to 1995)
Porsche 986 (Boxster; 1997 to 2004) with Tiptronic transmission and transmission code A86.00 or A86.05
Porsche 996 (1998 to 2001) with TC A96.00 and A96.30
Porsche 996 (2002 to 2005) with TC A96.10 and A96.35
Click 'Zoom in' for large arts diagram.
Fits to no 14 on diagram.
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98630750700
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Product Information
Insulation cap for disc valve.Fits:
Porsche 928 (1978 to 1995)
Porsche 944/2 (1985 to 1991)
Porsche 968 (1992 to 1995)
Porsche 986 (Boxster; 1997 to 2004) with Tiptronic transmission and transmission code A86.00 or A86.05
Porsche 996 (1998 to 2001) with TC A96.00 and A96.30
Porsche 996 (2002 to 2005) with TC A96.10 and A96.35
Click 'Zoom in' for large arts diagram.
Fits to no 14 on diagram.
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98630750700
98630750700
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- 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 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- 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 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Price: £20.75
Orderable - 14 to 28 Days
Shop Securely
12 Month Warranty
Worldwide Delivery
99630714400
Product Information
Fits:
Porsche 996 C2 / C4 >>2001 Tiptronic
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Price is for each.
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99630714400
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Product Information
Oil cooler pipe support.Fits:
Porsche 996 C2 / C4 >>2001 Tiptronic
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Price is for each.
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99630714400
99630714400
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Vehicle Group
Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Price: £8.82
Orderable - 14 to 28 Days
Shop Securely
12 Month Warranty
Worldwide Delivery
99630708501
Product Information
Fits:
Porsche 996 C2 / C4 >>2001 (M338 / M339)
Click 'Zoom in' for large parts diagram
Diagram ref no 22
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99630708501
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Product Information
Oil line return for ATF transmission cooler. Fits:
Porsche 996 C2 / C4 >>2001 (M338 / M339)
Click 'Zoom in' for large parts diagram
Diagram ref no 22
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99630708501
99630708501
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Price: £280.65
In Stock - 24 Hour Dispatch
Shop Securely
12 Month Warranty
Worldwide Delivery
99630708201
Product Information
Fits:
Porsche 996 C2 / C4 >>2001 (M338 / M339)
Click 'Zoom in' for large parts diagram
Diagram ref no 23
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99630708201
The product you are viewing cross references to these numbers
Product Information
Oil line supply for ATF transmission cooler. Fits:
Porsche 996 C2 / C4 >>2001 (M338 / M339)
Click 'Zoom in' for large parts diagram
Diagram ref no 23
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99630708201
99630708201
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Vehicle Group
Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Price: £284.80
In Stock - 24 Hour Dispatch
Shop Securely
12 Month Warranty
Worldwide Delivery
99970738840
Product Information
This Porsche Genuine OE O-Ring for Gearbox Oil Cooler ATF is a precision-engineered sealing ring used within the automatic (Tiptronic) transmission cooling system. This small but critical component provides a fluid-tight seal between the gearbox oil cooler and connecting pipework.
Sold individually
Fits:
Porsche 986 Boxster 1997 - 2004 Tiptronic
Porsche 987.1 Boxster 2005 - 2007 Tiptronic
Porsche 987C.1 Cayman 2007 - 2008 Tiptronic
Porsche 996 C2 / C4 / Turbo 1998 - 2005 Tiptronic
Porsche 997.1 C2 / C4 2005 - 2008 Tiptronic
Diagram ref no 2
Manufactured to Porsche OE standards, it ensures correct dimensions, material quality, and resistance to ATF (automatic transmission fluid), heat, and pressure.
This O-ring seals the junction between the gearbox oil cooler (heat exchanger) and its associated pipes, preventing ATF leaks and maintaining correct system pressure. By ensuring a secure seal, it allows the transmission fluid to circulate properly through the cooler, helping regulate temperature and maintain optimal gearbox performance.
Functions & Technical Role
• Fluid sealing: Prevents ATF leaks at oil cooler connections
• Pressure retention: Maintains correct hydraulic pressure within the system
• Thermal resistance: Designed to withstand high transmission temperatures
• System protection: Prevents contamination and air ingress
• OEM precision fit: Exact size and material specification for Porsche applications
Fitment / Position on car
• Fitting position: Transmission cooling system
• Location: Between gearbox oil cooler (ATF heat exchanger) and fluid pipes
• System: Automatic transmission (Tiptronic) lubrication and cooling
Although small, O-rings are critical wear items exposed to heat cycles, pressure, and fluid degradation. Over time they can harden, shrink, or crack, leading to:
• ATF leaks around the gearbox oil cooler
• Loss of transmission fluid and pressure
• Overheating of the gearbox
• Potential transmission damage
Replacing with a genuine Porsche OE O-ring ensures proper sealing, reliability, and long-term protection of the transmission system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970738840
The product you are viewing cross references to these numbers
Product Information
O-ring for gearbox oil cooler ATFThis Porsche Genuine OE O-Ring for Gearbox Oil Cooler ATF is a precision-engineered sealing ring used within the automatic (Tiptronic) transmission cooling system. This small but critical component provides a fluid-tight seal between the gearbox oil cooler and connecting pipework.
Sold individually
Fits:
Porsche 986 Boxster 1997 - 2004 Tiptronic
Porsche 987.1 Boxster 2005 - 2007 Tiptronic
Porsche 987C.1 Cayman 2007 - 2008 Tiptronic
Porsche 996 C2 / C4 / Turbo 1998 - 2005 Tiptronic
Porsche 997.1 C2 / C4 2005 - 2008 Tiptronic
Diagram ref no 2
Manufactured to Porsche OE standards, it ensures correct dimensions, material quality, and resistance to ATF (automatic transmission fluid), heat, and pressure.
This O-ring seals the junction between the gearbox oil cooler (heat exchanger) and its associated pipes, preventing ATF leaks and maintaining correct system pressure. By ensuring a secure seal, it allows the transmission fluid to circulate properly through the cooler, helping regulate temperature and maintain optimal gearbox performance.
Functions & Technical Role
• Fluid sealing: Prevents ATF leaks at oil cooler connections
• Pressure retention: Maintains correct hydraulic pressure within the system
• Thermal resistance: Designed to withstand high transmission temperatures
• System protection: Prevents contamination and air ingress
• OEM precision fit: Exact size and material specification for Porsche applications
Fitment / Position on car
• Fitting position: Transmission cooling system
• Location: Between gearbox oil cooler (ATF heat exchanger) and fluid pipes
• System: Automatic transmission (Tiptronic) lubrication and cooling
Although small, O-rings are critical wear items exposed to heat cycles, pressure, and fluid degradation. Over time they can harden, shrink, or crack, leading to:
• ATF leaks around the gearbox oil cooler
• Loss of transmission fluid and pressure
• Overheating of the gearbox
• Potential transmission damage
Replacing with a genuine Porsche OE O-ring ensures proper sealing, reliability, and long-term protection of the transmission system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970738840
99970738840
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Price: £6.56
Due In 11 Days
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99970738840/1
Product Information
An OE Match O-ring seal designed for the automatic transmission (Tiptronic) oil cooler system, ensuring a tight, leak-free connection between the gearbox oil cooler and fluid lines.
Sold individually
Fits:
Porsche 986 Boxster 1997 - 2004 Tiptronic
Porsche 987.1 Boxster 2005 - 2007 Tiptronic
Porsche 987C.1 Cayman 2007 - 2008 Tiptronic
Porsche 996 C2 / C4 / Turbo 1998 - 2005 Tiptronic
Porsche 997.1 C2 / C4 2005 - 2008 Tiptronic
Diagram ref no 2
This OE Match O-Ring for Gearbox Oil Cooler ATF is a precision-engineered sealing component designed to meet original Porsche specifications for fit, durability, and performance. This O-ring is used within the automatic transmission oil cooler system, where it forms a critical seal between the cooler and associated fluid lines.
Despite its small size, this O-ring plays a vital role in maintaining the integrity of the transmission cooling circuit. It prevents leaks of automatic transmission fluid (ATF), ensuring proper lubrication and temperature regulation of the gearbox. Without an effective seal, fluid loss can occur, potentially leading to overheating, reduced lubrication, and long-term transmission damage.
Manufactured from high-quality heat- and fluid-resistant rubber, the O-ring is designed to withstand the demanding conditions of the transmission system, including exposure to high temperatures, pressure, and aggressive fluids. It is a direct replacement for original parts and ensures reliable sealing performance in both maintenance and repair applications.
This component is commonly used on Tiptronic-equipped Porsche models, making it an essential part during transmission servicing or oil cooler replacement.
Function
• Provides a tight seal for gearbox oil cooler connections
• Prevents ATF leaks and pressure loss
• Maintains proper transmission cooling efficiency
• Protects against fluid contamination and air ingress
• Ensures reliable long-term sealing under heat and pressure
O-rings degrade over time due to heat, pressure, and exposure to transmission fluid. A worn or hardened seal can lead to ATF leaks, which may result in overheating, poor shifting performance, or serious transmission damage.
Replacing this O-ring during servicing ensures a proper seal and helps maintain the reliability and longevity of the transmission system.
When to replace
• During gearbox or oil cooler servicing
• Visible ATF leaks around cooler or lines
• O-ring appears cracked, flattened, or hardened
• Preventative replacement during transmission maintenance
• When removing or reinstalling cooler lines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970738840
The product you are viewing cross references to these numbers
Product Information
O-ring for gearbox oil cooler ATF, 18.64 x 3.53 mmAn OE Match O-ring seal designed for the automatic transmission (Tiptronic) oil cooler system, ensuring a tight, leak-free connection between the gearbox oil cooler and fluid lines.
Sold individually
Fits:
Porsche 986 Boxster 1997 - 2004 Tiptronic
Porsche 987.1 Boxster 2005 - 2007 Tiptronic
Porsche 987C.1 Cayman 2007 - 2008 Tiptronic
Porsche 996 C2 / C4 / Turbo 1998 - 2005 Tiptronic
Porsche 997.1 C2 / C4 2005 - 2008 Tiptronic
Diagram ref no 2
This OE Match O-Ring for Gearbox Oil Cooler ATF is a precision-engineered sealing component designed to meet original Porsche specifications for fit, durability, and performance. This O-ring is used within the automatic transmission oil cooler system, where it forms a critical seal between the cooler and associated fluid lines.
Despite its small size, this O-ring plays a vital role in maintaining the integrity of the transmission cooling circuit. It prevents leaks of automatic transmission fluid (ATF), ensuring proper lubrication and temperature regulation of the gearbox. Without an effective seal, fluid loss can occur, potentially leading to overheating, reduced lubrication, and long-term transmission damage.
Manufactured from high-quality heat- and fluid-resistant rubber, the O-ring is designed to withstand the demanding conditions of the transmission system, including exposure to high temperatures, pressure, and aggressive fluids. It is a direct replacement for original parts and ensures reliable sealing performance in both maintenance and repair applications.
This component is commonly used on Tiptronic-equipped Porsche models, making it an essential part during transmission servicing or oil cooler replacement.
Function
• Provides a tight seal for gearbox oil cooler connections
• Prevents ATF leaks and pressure loss
• Maintains proper transmission cooling efficiency
• Protects against fluid contamination and air ingress
• Ensures reliable long-term sealing under heat and pressure
O-rings degrade over time due to heat, pressure, and exposure to transmission fluid. A worn or hardened seal can lead to ATF leaks, which may result in overheating, poor shifting performance, or serious transmission damage.
Replacing this O-ring during servicing ensures a proper seal and helps maintain the reliability and longevity of the transmission system.
When to replace
• During gearbox or oil cooler servicing
• Visible ATF leaks around cooler or lines
• O-ring appears cracked, flattened, or hardened
• Preventative replacement during transmission maintenance
• When removing or reinstalling cooler lines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970738840
99970738840
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Price: £4.15
In Stock - 24 Hour Dispatch
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12 Month Warranty
Worldwide Delivery
0009971171
Product Information
For Cars With Tiptronic Gearbox ONLY!
Fits:
Porsche 996 Carrera 2002>>2005
Cars With Option Codes:
338 - Rear-Wheel Drive
339 - All-Wheel Drive
Porsche 996 Turbo / GT2 2001>>2005
Porsche 997.1 Carrera MKI 2005>>2008
Porsche 997.1 Turbo / GT2 MKI 2007>>2009
Diagram Ref No 6
Related reference numbers
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0009971171
The product you are viewing cross references to these numbers
Product Information
Screwed Socket For Tiptronic Gearbox.For Cars With Tiptronic Gearbox ONLY!
Fits:
Porsche 996 Carrera 2002>>2005
Cars With Option Codes:
338 - Rear-Wheel Drive
339 - All-Wheel Drive
Porsche 996 Turbo / GT2 2001>>2005
Porsche 997.1 Carrera MKI 2005>>2008
Porsche 997.1 Turbo / GT2 MKI 2007>>2009
Diagram Ref No 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0009971171
0009971171
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- 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 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT2 2007-09
Price: £12.08
Orderable - 22 to 28 Days
Shop Securely
12 Month Warranty
Worldwide Delivery
92857457304::1
Product Information
Fits:
For cars with tiptronic gearbox
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Porsche 987C.1 Cayman 2005-08
Porsche 987C.2 Cayman 2009-12
Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 997.1 Carrera 2005-08
Porsche 997.1 Turbo 2007-09
Porsche 997.2 Carrera 2009-12
Porsche 997.2 Turbo 2010-13
Click 'Zoom in' for large parts diagram.
Diagram ref 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92857457304
The product you are viewing cross references to these numbers
Product Information
Transmission oil cooler thermostat.Fits:
For cars with tiptronic gearbox
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Porsche 987C.1 Cayman 2005-08
Porsche 987C.2 Cayman 2009-12
Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 997.1 Carrera 2005-08
Porsche 997.1 Turbo 2007-09
Porsche 997.2 Carrera 2009-12
Porsche 997.2 Turbo 2010-13
Click 'Zoom in' for large parts diagram.
Diagram ref 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92857457304
92857457304
92857457303
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- 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 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Price: £105.52
Due In 8 Days
Shop Securely
12 Month Warranty
Worldwide Delivery
92857457304/1::1
Product Information
Fits:
For cars with tiptronic gearbox
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Porsche 987C.1 Cayman 2005-08
Porsche 987C.2 Cayman 2009-12
Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 997.1 Carrera 2005-08
Porsche 997.1 Turbo 2007-09
Porsche 997.2 Carrera 2009-12
Porsche 997.2 Turbo 2010-13
Click 'Zoom in' for large parts diagram.
Diagram ref 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92857457304
The product you are viewing cross references to these numbers
Product Information
Transmission oil cooler thermostat.Fits:
For cars with tiptronic gearbox
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Porsche 987C.1 Cayman 2005-08
Porsche 987C.2 Cayman 2009-12
Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 997.1 Carrera 2005-08
Porsche 997.1 Turbo 2007-09
Porsche 997.2 Carrera 2009-12
Porsche 997.2 Turbo 2010-13
Click 'Zoom in' for large parts diagram.
Diagram ref 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92857457304
92857457304
92857457303
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- 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 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Price: £45.00
In Stock - 24 Hour Dispatch
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12 Month Warranty
Worldwide Delivery
DISPLAYING 1 to 16 (of 16 products)
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About Transmission Cooling
Porsche Transmission Cooling - Protect Gearbox Performance & Longevity
Porsche transmission cooling components are designed to regulate gearbox temperatures under load, helping maintain optimal oil viscosity, smooth shifting, and long-term transmission reliability. By dissipating excess heat generated during high-speed driving, towing, or track use, transmission coolers and associated components protect critical internal parts from premature wear and failure.
Available from Design911, Porsche transmission cooling solutions are ideal for both preventative maintenance and performance-focused upgrades, ensuring your gearbox operates within safe temperature limits.
What Do Porsche Transmission Cooling Components Do?
Transmission cooling systems manage heat build-up within the gearbox and transmission oil.
Core Functions:
- Reduce gearbox and transmission oil temperatures
- Maintain consistent lubrication under load
- Prevent thermal breakdown of transmission fluid
- Support smooth shifting and drivetrain efficiency
- Protect internal gears, bearings, and seals
Effective transmission cooling is essential for sustained performance and durability.
Why Do Transmission Cooling Components Fail?
Transmission cooling components are exposed to heat, pressure, and environmental factors that can cause wear over time.
Common Causes of Failure:
- Blocked or restricted cooling lines
- Degraded hoses or seals due to heat cycling
- Oil cooler contamination or internal blockage
- Physical damage from road debris
- Increased thermal load from performance driving
When cooling efficiency drops, transmission temperatures rise, accelerating internal wear.
When Should Transmission Cooling Components Be Replaced?
Porsche transmission cooling parts should be inspected or
replaced if any of the following occur:
- Rising transmission temperatures or warning messages
- Transmission fluid leaks around cooler lines
- Burnt or degraded gearbox oil
- Poor shifting performance under load
- During gearbox servicing or performance upgrades
Replacing worn cooling components early helps prevent costly gearbox repairs.
Highlights
- Essential Porsche gearbox cooling components
- Helps control transmission oil temperatures
- Protects internal gearbox parts from heat damage
- Suitable for road, fast-road, and track use
- OEM-spec and performance-focused solutions
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