Valve Stem Seal 11/32" x .531" PIOS-1065

Valve Stem Seal 11/32" x .531" OS-1065 PIOS-1065 Rubber/Teflon VALVE STEM SEAL RUBBER/TEFLON All Teflon seal with spring loaded wiper

Prevents unwanted oil from contaminating the cylinder, which can cause loss of power

Makes engine tune-ups easier and provides smoother engine idle by stopping leakage of air through the intake vlave guide