Description
If you’re rebuilding a Polaris 500 engine, piston quality directly impacts reliability, power output, and engine longevity. The WSM Piston Kit delivers OEM-equivalent construction with measurable performance upgrades—specifically, the MOS2 coating on the skirts reduces friction and heat while drawing thermal energy away from critical ring groove areas. This means more consistent power delivery, longer component life, and the precision fit your engine demands.
Built for serious riders and mechanics who refuse to compromise on engine internals, this kit gives you everything needed for a complete piston replacement per cylinder.
- +.25 mm oversized
- Piston, rings, pin, clips included
- MOS2-coated skirts
- Heat-dissipating design
- Hardened ring grooves
- Improved E-clip design
- Meets/exceeds OEM specs
- One kit per cylinder
- Additional rings available separately
- MPN: 50-311-04K
