Sparex source: https://us.sparex.com/intake-valve-65699.html Product: Intake Valve - Sparex S.65699 SKU: S.65699 Listing note: Head Ø: 43.8mm, Stem Ø: 9.5mm, : 158.9mm, Seat Angle: 30°. Detail enrichment pending: OEM cross references, fitment, catalog pages, and full specifications.