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The Wiseco 103.302mm (4.067 in) top piston ring is a precise replacement ring for Wiseco 4‑stroke pistons, providing compression sealing and oil control. Built to Wiseco’s specifications and tested for race‑ready performance, this top ring supports reliable sealing under demanding conditions and is intended for use when matching or rebuilding engines with the specified bore size.
Wiseco 103.302mm (4.067inch) Top Ring Ring Shelf Stock
