This Supertech valve stem seal is a single 6mm Viton stem seal specified for intake or exhaust service on the Ford Coyote 5.0L. Supplied individually, the listing identifies the part by stem diameter and material to support valve guide sealing needs during assembly or rebuild of Coyote 5.0L cylinder heads.
Supertech Ford Coyote 5.0L 6mm Stem Viton Intake/Exhaust Valve Stem Seal - Single