Description
A piston kit is the heart of your engine’s combustion chamber—factory pistons wear out, develop carbon buildup, and lose efficiency over time. This WSM piston kit delivers OEM-quality construction with performance-focused engineering, including a proprietary MOS2 coating that reduces friction and heat while strengthening your ring grooves for extended durability. Whether you’re rebuilding after high-mileage wear or stepping up displacement with a +.50 mm bore, you get a complete, matched set designed to restore or exceed your engine’s original performance.
- Complete kit per cylinder
- Piston, rings, pin, clips
- +.50 mm bore size
- MOS2-coated skirts
- Reduces friction and heat
- Specially hardened ring grooves
- Improved E-clip design
- Meets/exceeds OEM specs
- Additional rings available separately
- Honda 400 fitment
- MPN: 50-228-05K
