Description
A worn top end compromises power delivery, fuel efficiency, and engine reliability—especially critical in high-demand 4-stroke applications. The WSM Top End Kit gives you OEM-quality components engineered for Honda 420 engines, eliminating guesswork and ensuring proper ring seal, bearing support, and gasket integrity from the first start. This complete kit includes everything needed for a professional refresh, reducing downtime and protecting your investment.
- Includes pistons, rings, pins
- Clips and needle bearings
- Head and base gaskets
- Intake and exhaust gaskets
- Oil filter included
- Honda 420 4-stroke specific
- 1mm oversized piston
- Bolt-on installation (professional recommended)
- MPN: 54-231-24
