Valve Spring Retainer - Upper - 911 | Boxster | Cayman | 1999-2008 222-320-17-89 This high-performance system includes the

This high-performance system includes the following:

For original years 1972-1976 but can be used 1969-1989

Porsche Specifically made for the early G50 5 speed '87-'89 transmission our billet aluminum side cover replaces the thin cast cover that is prone to failure

Precision-Engineered: Ensures accurate and reliable fluid delivery

Valve Spring Retainer - Upper - 911 | Boxster | Cayman | 1999-2008 222-320-17-89 This high-performance system includes theCylinder Head Valve Spring Retainer Upper For Porsche 996 (1999 2004) 997 (2005 2008), Boxster 987 (2005 2008), Cayman 987 (2006 2008) Models. Precision engineered valve spring retainer designed for Porsche 996, 997, Boxster 987, and Cayman 987 models. This critical cylinder head component maintains proper valve spring tension and alignment, ensuring optimal engine performance and reliability. OEM quality construction withstands high RPM operation and