Description
If you’re rebuilding a Honda 400 engine, piston quality directly impacts reliability, power output, and engine longevity. WSM’s piston kit delivers OEM-equivalent construction with several performance-focused upgrades that reduce friction, manage heat more effectively, and strengthen critical wear surfaces. Whether you’re running a single rebuild or maintaining a fleet of engines, ordering the correct quantity per cylinder ensures you have everything needed for a complete, dependable restoration.
- Complete kit per cylinder
- Piston, rings, pin, clips
- MOS2-coated skirts
- Reduces friction and heat
- Improved E-clip design
- Hardened ring groove tops
- Meets/exceeds OEM specs
- Additional rings available
- MPN: 50220K
