RELIANCE POWER PARTS Seal, Valve Stem NRE31617

Reliance Power Parts Valve Stem Seal. A small, critical engine seal, typically made of Viton (FKM) rubber (indicated by the orange/brown color) with a metal outer casing (as seen by the ridges). It is designed to regulate oil consumption by controlling the amount of oil that passes between the valve stem and the valve guide. The marking OFM-MEX may indicate the manufacturer or country of components origin (Offshore/Mexico).