Cylinder Head Concave Washer For Porsche 996 (1999-2004) 997 (2005-2008), Boxster 986/987 (1997-2008), Cayman 987 (2006-2008), Cayenne (2003-2006) Models.

Precision-engineered cylinder head concave washer designed for Porsche 996 and 997 911 models, as well as Boxster 986/987, Cayman 987, and Cayenne applications. This critical fastener component ensures proper load distribution and sealing integrity at the cylinder head, maintaining optimal compression and preventing leakage. Manufactured to OEM specifications for reliable performance and durability. Direct replacement for factory washers, simplifying installation and restoration work on your Porsche engine.