O-Ring Genuine Porsche part 99970758340

Code: 99970758340

Genuine Porsche part

O-Ring

The product code 99970758340 was also found on these diagrams

202-05 - o-ring 12,0 x 2,0

Fuel System, Exhaust System 997 (911) MK1 2005-2008

turbocharger with heat protection and oil pipe water line for 997.1 TURBO/GT2 M97.70 2007-09 and 997.1 GT2 RS M97.70 2011

202-007 - o-ring 12,0 x 2,0

Fuel System, Exhaust System 997 (911) MK2 2009-2012

Exhaust gas turbocharger - 9770 - 997.2 GT2 RS 2010-11

Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

Before purchasing thoroughly check part to confirm compatibility.

Related products

O-Ring for Oil Cooler (28 X 3 mm). Porsche 987.1 Boxster / 987C.1 Cayman / 997.1 Carrera

99970754740

Product 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

99970754240

99970754740

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O-Ring Genuine Porsche part 99970758340