
The Wiseco 106.375mm (4.188 in) top piston ring is a precise replacement for Wiseco 4‑stroke pistons, offering compression sealing and oil control. Manufactured to Wiseco’s specifications and tested for race‑ready performance, this top ring is intended for matching Wiseco pistons or rebuilding engines that require exact 106.375mm sizing and dependable sealing.
Wiseco 106.375mm (4.188inch) Top Ring Ring Shelf Stock