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O-Ring for Oil Cooler (28 X 3 mm). Porsche 987.1 Boxster / 987C.1 Cayman / 997.1 Carrera - 99970754740
99970754740
Vehicle Group
- We are unable to provide fitting details for this product at this time. Please contact us for further information.
Information
O-Ring for Oil Cooler (28 X 3 mm)
The Porsche Genuine OE O-Ring (Part No. 99970754740) is a precision-engineered sealing ring (28 x 3 mm) designed for use within the engine oil cooling system. It is specifically used at the oil cooler and associated pipe connections, ensuring a secure and leak-free seal.
Sold individually, 2 required per vehicle
Fits:
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005 - 2008
Porsche 987C.1 Cayman 2.7L / 3.4L 2006 - 2008
Porsche 997.1 Carrera 3.6L / 3.8L 2005 - 2008
Diagram ref no
This O-ring seals the connection between the engine oil cooler (heat exchanger) and oil passages or pipework, preventing oil leaks and maintaining proper system pressure.
By ensuring a tight seal, it allows engine oil to circulate efficiently through the cooler, helping regulate oil temperature and protect critical engine components.
Functions & Technical Role
• Oil sealing: Prevents leaks at oil cooler connections
• Pressure retention: Maintains correct oil system pressure
• Thermal resistance: Designed for high-temperature engine environments
• System protection: Prevents air ingress and oil contamination
• OEM precision: Exact 28 x 3 mm dimensions for correct fitment
Fitment / Position on car
• Fitting position: Engine lubrication system
• Location: Between engine oil cooler and mounting surface / oil pipe connections
• System: Engine oil cooling / lubrication system
O-rings in the oil system are exposed to heat, pressure, and constant oil flow, which can cause them to harden or degrade over time. A failing seal can result in:
• Engine oil leaks
• Loss of oil pressure
• Oil contamination
• Risk of engine damage
Replacing with a genuine Porsche OE O-ring ensures proper sealing and protects the engine from costly issues.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970754740
The product you are viewing cross references to these numbers
The Porsche Genuine OE O-Ring (Part No. 99970754740) is a precision-engineered sealing ring (28 x 3 mm) designed for use within the engine oil cooling system. It is specifically used at the oil cooler and associated pipe connections, ensuring a secure and leak-free seal.
Sold individually, 2 required per vehicle
Fits:
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005 - 2008
Porsche 987C.1 Cayman 2.7L / 3.4L 2006 - 2008
Porsche 997.1 Carrera 3.6L / 3.8L 2005 - 2008
Diagram ref no
This O-ring seals the connection between the engine oil cooler (heat exchanger) and oil passages or pipework, preventing oil leaks and maintaining proper system pressure.
By ensuring a tight seal, it allows engine oil to circulate efficiently through the cooler, helping regulate oil temperature and protect critical engine components.
Functions & Technical Role
• Oil sealing: Prevents leaks at oil cooler connections
• Pressure retention: Maintains correct oil system pressure
• Thermal resistance: Designed for high-temperature engine environments
• System protection: Prevents air ingress and oil contamination
• OEM precision: Exact 28 x 3 mm dimensions for correct fitment
Fitment / Position on car
• Fitting position: Engine lubrication system
• Location: Between engine oil cooler and mounting surface / oil pipe connections
• System: Engine oil cooling / lubrication system
O-rings in the oil system are exposed to heat, pressure, and constant oil flow, which can cause them to harden or degrade over time. A failing seal can result in:
• Engine oil leaks
• Loss of oil pressure
• Oil contamination
• Risk of engine damage
Replacing with a genuine Porsche OE O-ring ensures proper sealing and protects the engine from costly issues.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970754740
99970754240
99970754740
The product you are viewing cross references to these numbers
Price: £2.98
In stock
Also found on these pages
Related products
Vehicle Group
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- 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 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
Information
Radiator oil cooler on engine.
Fits:
Porsche 996 1998-05
Porsche 997 3.6L
Porsche 986 Boxster S 3.2L
Porsche 987 Boxster S 3.4L
Click 'Zoom in' for large parts diagram.
Diagram Ref No 18.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610702559
The product you are viewing cross references to these numbers
Fits:
Porsche 996 1998-05
Porsche 997 3.6L
Porsche 986 Boxster S 3.2L
Porsche 987 Boxster S 3.4L
Click 'Zoom in' for large parts diagram.
Diagram Ref No 18.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610702559
99610702557
99610702559
99610722559
99610702557
376726111
99610702556
90938
8MO376726111
The product you are viewing cross references to these numbers
Price: £145.00
In stock
Vehicle Group
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- 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 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
Information
Radiator oil cooler on engine.
Fits:
Porsche 996 1998-05
Porsche 997 3.6L
Porsche 986 Boxster S 3.2L
Porsche 987 Boxster S 3.4L
Click 'Zoom in' for large parts diagram.
Diagram Ref No 18.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610702559
The product you are viewing cross references to these numbers
Fits:
Porsche 996 1998-05
Porsche 997 3.6L
Porsche 986 Boxster S 3.2L
Porsche 987 Boxster S 3.4L
Click 'Zoom in' for large parts diagram.
Diagram Ref No 18.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610702559
99610702557
31291
99610702559
8MO37672611
99610702559
376726111
99610702556
90938
The product you are viewing cross references to these numbers
Price: £456.23
Orderable
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 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 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
Information
Heat exchanger tester for Porsche 996 / 997
Some M96/M97 engines are experiencing oil-to-coolant intermixing. While there are potentially several sources of intermixing, faulty engine mounted oil-to-coolant heat exchangers are a major source. Now, with STOMSKI RACING's M96 Heat Exchanger Tester, you can confirm if your exchanger is faulty and needs replacing, or whether the source of the contamination is elsewhere. This high-quality tool is CNC machined from 6061 aluminum, anodized for years of service, and comes complete with all gauges, seals and hardware.
Some M96/M97 engines are experiencing oil-to-coolant intermixing. While there are potentially several sources of intermixing, faulty engine mounted oil-to-coolant heat exchangers are a major source. Now, with STOMSKI RACING's M96 Heat Exchanger Tester, you can confirm if your exchanger is faulty and needs replacing, or whether the source of the contamination is elsewhere. This high-quality tool is CNC machined from 6061 aluminum, anodized for years of service, and comes complete with all gauges, seals and hardware.
Price: £266.00
Orderable