SSI Viton Valve Stem Seals for Harley EVO/Twin Cam, 4 Pack

• SET OF FOUR: Includes four valve stem seals for the listed Harley-Davidson applications.
• MEASURE BEFORE ORDERING: Current listing specifies a 5/16-inch stem and a .420-inch guide diameter.
• EVO AND TWIN CAM: Listed for EVO Big Twin and Twin Cam engines; verify the actual cylinder head and year.
• VITON SEALS: Current product description identifies Viton sealing material.
• SPRING CLEARANCE: The existing description indicates use within dual spring assemblies; verify clearance for your build.

Street Sport Industries set of four Viton valve stem seals listed for Harley-Davidson EVO Big Twin and Twin Cam applications. The current description identifies a 5/16-inch stem and .420-inch guide diameter and a 1984?2004 listing range. Confirm the engine, model year, valve stem, guide size, and spring clearance before ordering; applicability can vary by cylinder head.