Howards Cams Ultimate Duty Valve Seals

4.75 out of 5 stars 24 Customer Reviews

Howards Cams Ultimate Duty premium PC-type seals are made of a space-age material that is tolerant to pump gas, alcohol, and nitromethane. Temperature-tolerant to 350 degrees, they are self-lubricating and offer controlled radial tension during changes in operating temperatures. Howards Cams Ultimate Duty valve seals are color-coded and control oil while lubricating the valve guide. Additional features include: * Space-age DuPont fluoro-polymer material * Design allows for very small amount of oil for guide/stem lubrication * Install with fingers

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Howards Cams Ultimate Duty Valve Seals 93321

Howards Cams Ultimate Duty Valve Seals 93321

Valve Stem Seals, Dupont Fluoroelastomer, Positive Stop, 3/8 in. Valve Stem, Set of 16

Part Number: HRS-93321

4.73 out of 5 stars ( 15 )

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Howards Cams Ultimate Duty Valve Seals 93311

Valve Stem Seals, Positive Stop, 11/32 in. Valve Stem, .500 in. Guide Diameter, .630 in. O.D., Set of 16

Part Number: HRS-93311

4.75 out of 5 stars ( 8 )

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Howards Cams Ultimate Duty Valve Seals 93310-1