Sparex source: https://us.sparex.com/piston-standard-65882.html Product: Piston (standard) - Sparex S.65882 SKU: S.65882 Listing note: Piston Length mm: 126.65mmCompression Height: 67.80mmBore Ø: 111.76mmBowl Depth: 18.89mmChamber Ø: 63.48mmPin Ø: 41.27mmNo. of Rings: 4 Detail enrichment pending: OEM cross references, fitment, catalog pages, and full specifications.