Constant Pressure Valve O-Ring for 2001-2008 BMW S54 M3 Z3 M Z4 M
. Viton replacement O-ring for repairing a common oil leak at the constant pressure valve on compatible BMW S54 engines.
Product Details
- New replacement CPV sealing O-ring
- Viton material selected for oil and heat resistance
- Replaces the original seal without purchasing a complete valve assembly
- Constant pressure valve and installation tools are not included
Fitment and Compatibility
For compatible BMW S54 engines, including 2001-2006 E46 M3, 2001-2002 Z3 M Roadster/M Coupe (E36/7 and E36/8), and 2006-2008 Z4 M Roadster/M Coupe (E85/E86). Verify the S54 engine and leak source before ordering.
Part Number Information
Part number: BMW does not catalog this O-ring separately from the constant pressure valve assembly; no separate OE seal number is claimed.
Package Contents
- 1 Viton constant pressure valve O-ring
Installation Notes
The CPV is located at the rear side of the engine and access is limited. Clean the area before removal, use the correct driver, inspect the valve and sealing bore, and torque the valve to factory specification. Confirm the repair after the engine reaches operating temperature.
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