Description
When you’re pushing your Polaris to the limit, factory pistons become your bottleneck. The WSM Piston Kit delivers OEM-grade construction with engineered improvements—a reinforced design that handles higher combustion pressures while the proprietary MOS2 coating reduces friction and heat for measurable power gains. This is the upgrade serious racers choose when stock reliability isn’t enough.
Each kit contains everything you need to refresh one cylinder, with the option to source additional ring sets separately. Installation is straightforward for anyone with basic mechanical skills, though professional installation is always recommended for optimal results.
- Meets or exceeds OEM quality
- +1 mm oversized bore
- Improved E-clip design
- MOS2 friction-reducing coating
- Heat-drawing piston walls
- Hardened ring groove tops
- Includes piston, rings, pin, clips
- One kit per cylinder
- Additional rings available separately
- MPN: 50-300-07PK
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