1966-1984 Harley Davidson Touring / Sportster / FX / FXR Valve Stem Seal - Steel (3/8 Stem / .617 Guide)

This steel valve stem seal is a precision-engineered component designed to regulate lubrication within the cylinder head. It provides a robust barrier that prevents excess oil from escaping past the valve guides into the combustion chamber, which is essential for reducing oil consumption and preventing plug fouling. The durable steel construction is specifically chosen for its ability to maintain a secure press-fit and structural stability under the high-vibration and high-heat conditions typical of vintage air-cooled engines.

This direct-fit seal is a specialized replacement for 1966-1984 Harley Davidson FX, FXR, Sportster, and Touring models equipped with the Shovelhead engine.