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Gearbox Oil Cooler
By OE Match
- Porsche Boxster S 986 3.2L 2003-04
- 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
Fits:
Porsche 996 C2 / C4 2002>> Tiptronic
Porsche 996 TURBO Tiptronic
Porsche 997 C2 / C4 2005>> Tiptronic
Porsche 997 TURBO Tiptronic
Click 'Zoom in' for large parts diagram.
Diagram ref no 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
7222700495
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 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
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
Click 'Zoom in' for large parts diagram.
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
- 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
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
- 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
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
OEMatch Gearbox Oil Cooler — Engagement, Smoothness, Control
OEMatch gearbox oil coolers for Porsche models manage transmission oil temperature to help preserve fluid properties and component life. Selected to suit routine servicing, rebuilds and higher-load use, they support stable lubrication and hydraulic function under sustained demand.
Available Types
- Replacement coolers for manual gearboxes
- Transmission coolers for PDK systems
- Tiptronic transmission coolers
Understanding OEMatch Gearbox Oil Cooler
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original gearbox oil coolers.
OE (Original Equipment) refers to parts matching original specifications for the gearbox oil coolers and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM gearbox oil coolers engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
A gearbox oil cooler circulates and cools gearbox oil to dissipate heat generated during transmission operation, maintaining stable oil temperatures for lubrication and hydraulic control. OEMatch maintains over 4,000 Porsche part numbers and more than 8,700 OE cross-references and continues to develop new products to support Porsche vehicles.
Benefits Include
- Restores efficient gearbox temperature regulation
- Helps prevent oil breakdown and preserve lubrication
- Protects seals, bearings and internal components from heat-related damage
- Supports consistent hydraulic and shift performance under load
Why Gearbox Oil Cooler Wear and Fail
- Corrosion or internal degradation from moisture or contaminated oil
- Leaks from damaged fittings, cracked cores or failed joints
- Blockages that restrict oil flow and reduce heat transfer
- External impact or road debris causing physical damage
The Importance of Replacing with OEMatch Gearbox Oil Cooler
Replacing a faulty or leaking gearbox oil cooler helps maintain correct operating temperatures, reduces the risk of fluid degradation and gear wear, and supports reliable shifting in Porsche models. Timely renewal preserves component life and reduces the chance of more extensive transmission repair.
Advantages
- Durable aluminium construction and efficient core designs
- Options compatible with factory systems and sensors
- Direct-fit replacements engineered to match original dimensions and tolerances for Porsche models
