Description
Stock pistons don’t cut it when you’re pushing your Yamaha to the limit—heat buildup and friction rob you of power and longevity. WSM’s piston assembly delivers OEM-matched quality with engineered upgrades that dissipate heat more effectively and strengthen critical stress points. Order one per cylinder and gain the reliability you need for consistent performance, whether you’re on the track or the trail.
- Meets/exceeds OEM specifications
- MOS2-coated skirts reduce friction
- Heat-dissipating piston design
- Hardened ring groove tops
- Improved E-clip design
- Includes piston, rings, pin, clips
- Additional rings sold separately
- Order one per cylinder
- Yamaha-specific fitment
- MPN: 010-871K
