Howards Cams Ultimate Duty Valve Stem Seals

Self-Lubricating Valvetrain Seals

Howards Cams Valve Stem Seals are constructed of durable materials in which are very resistant to gas, alcohol, and nitromethane. These valve stem seals are self-lubricating and offer controlled radial tension during changes in operating temperatures. Each seal controls oil flow while properly lubricating the valve guide.