Description
A worn or damaged top end compromises compression, efficiency, and reliability—especially in high-RPM applications. The WSM Top End Kit delivers OEM-quality components in a single, complete package, eliminating the guesswork of sourcing individual parts and ensuring proper fitment and function. Whether you’re rebuilding after extensive use or upgrading a high-mileage engine, this kit restores your 4-stroke to peak performance with factory-spec precision.
- Complete top-end rebuild kit
- High-quality pistons included
- Piston rings and pins
- Retaining clips
- Needle bearings
- Head gasket
- Base gasket
- Intake gasket
- Exhaust gasket
- Oil filter included
- 4-stroke engine compatible
- MPN: 54-226-11
- .25mm piston size
- Bolt-on installation ready









