Wiseco PK1840 is a high-performance, high-compression forged piston kit for 4-stroke engines, supplied with everything needed for a complete top-end refresh. Ideal for restoring power and reliability with matched Wiseco components.
Get back the snap, response and reliability your 4-stroke was built for. The Wiseco PK1840 High-Compression Piston Kit is a complete top-end rebuild solution that combines a forged performance piston with a matching ring set and a top-end gasket kit. It’s designed to simplify your rebuild by providing the critical components in one kit, while delivering the durability and performance expected from Wiseco’s Forged Series.
If your engine has lost compression, feels tired, or you’re planning a refresh after hard hours on track or trail, this kit helps restore strong sealing and consistent power output. With Wiseco-specific rings and a quality forged piston, you get a purpose-matched setup for dependable results.
Note: Wiseco ring types are not interchangeable, and Wiseco pistons must be used with Wiseco rings. Cylinder sleeves must be purchased separately if required for your build.
