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The Wiseco 105.33mm (4.147 in) top piston ring is a replacement ring for Wiseco 4‑stroke pistons, delivering compression sealing and oil control. Made to Wiseco’s specifications and tested for race‑ready performance, this top ring is intended for piston matches or engine rebuilds that require the exact 105.33mm sizing and consistent sealing in demanding conditions.
Wiseco 105.33mm (4.147inch) Top Ring Ring Shelf Stock
