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The Wiseco 105.08mm (4.137 in) top piston ring is a precise replacement for Wiseco 4‑stroke pistons, providing compression sealing and oil control. Produced to Wiseco’s specifications and tested with race‑ready performance in mind, this top ring is intended for use when matching Wiseco pistons or rebuilding engines that call for accurate 105.08mm ring sizing and reliable sealing.
Wiseco 105.08mm (4.137inch) Top Ring Ring Shelf Stock
