Cylinder Head Valve Spring Retainer - Lower For Porsche 996 (1999-2004) 997 (2005-2008), Boxster 987 (2005-2008), Cayman 987 (2006-2008) Models.

Precision-engineered lower valve spring retainer designed for Porsche 996, 997, Boxster 987, and Cayman 987 models. This critical engine component maintains proper valve spring tension and alignment, ensuring optimal valve operation and engine performance. OEM-quality construction built to withstand high RPM demands and thermal stress. Direct fit replacement for reliable, long-lasting operation in your Porsche's cylinder head assembly.