Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The COMP Positive Stop PTFE valve seal is sized for 5/16" valve stems and fits .530" OD valve guides with a .630" outer diameter. These PTFE seals offer increased clearance for dual-spring setups and provide better sealing than traditional o-ring or umbrella seals, making them suitable when additional valve guide clearance is needed without changing retainers or splash shields.
COMP Cams Valve Seal 5/16in PTFE
