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The Wiseco 105.867mm (4.168 in) top piston ring is a replacement ring for Wiseco 4‑stroke pistons, delivering compression sealing and oil control. Produced to Wiseco’s specifications and tested with race‑ready performance in mind, this top ring suits piston matches or engine rebuilds that require exact 105.867mm sizing and reliable sealing under load.
Wiseco 105.867mm (4.168inch) Top Ring Ring Shelf Stock
