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O-Ring for Oil Cooler (28 X 3 mm). Porsche 987.1 Boxster / 987C.1 Cayman / 997.1 Carrera ❭ 99970754740
- We are unable to provide fitting details for this product at this time. Please contact us for further information.
The OE Match Oil Cooler O-Ring (28 x 3 mm) is a precision-engineered sealing component developed to meet original Porsche specifications for fit, durability, and performance. This O-ring is used within the engine oil cooling system, where it seals connections between the oil cooler and coolant or oil passages.
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 19
This O-ring is commonly required when servicing or replacing the oil cooler, oil pipes, or related engine components and should always be renewed during reassembly to prevent leaks and ensure long-term reliability.
Function
• Provides a tight seal for oil cooler connections
• Prevents engine oil leaks and pressure loss
• Maintains proper lubrication and cooling efficiency
• Resists heat, pressure, and oil exposure
• Ensures long-term sealing reliability
Fitment & Application
• System: Engine oil cooler / lubrication system
• Position: Oil cooler to housing / pipe connections
• Size: 28 mm inner diameter x 3 mm thickness
• Function: Prevents oil leaks and maintains system pressure
• Sold: Individually
O-rings in the oil system are exposed to high temperatures and continuous contact with engine oil, causing them to harden, flatten, or degrade over time. A failing seal can lead to oil leaks, reduced pressure, and potential engine damage. Replacing this O-ring during servicing ensures a proper seal, maintains oil system integrity, and protects engine components.
When to replace
• During oil cooler or pipe servicing
• Visible oil leaks around cooler connections
• O-ring appears flattened, brittle, or cracked
• Preventative replacement during engine maintenance
• When removing or reinstalling oil system components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970754740
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