Valve Stem Seals 11/32" x .500" PIOS-1090

Valve Stem Seals 11/32" x .500" OS-1090 PIOS-1090 Teflon VALVE STEM SEAL 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