Description
If you’re rebuilding a Honda 400 engine or replacing worn pistons, the WSM Piston Kit delivers OEM-equivalent quality with measurable performance gains. The MOS2-coated skirts actively reduce friction and heat by drawing thermal energy through the piston walls, translating to improved power delivery and extended component life. This is a complete, ready-to-install solution that eliminates the guesswork of sourcing individual piston components.
- Oversized +.25 mm bore
- Includes piston, rings, pin, clips
- MOS2 friction-reducing coating
- Improved E-clip design
- Hardened ring groove tops
- Heat-dissipating skirt technology
- Meets/exceeds OEM specifications
- Order one per cylinder
- Additional rings available separately
- Bolt-on installation compatible
