Description
When you’re pushing your Polaris 300 to the limit, stock pistons become your bottleneck. The Wiseco 721M07550 delivers the compression ratio, durability, and power output you need to stay competitive—whether you’re chasing lap times or tackling aggressive trail conditions. This forged piston kit transforms your engine’s performance envelope with materials and engineering proven in professional racing applications.
Wiseco engineered this +1.00mm oversize kit specifically for the 1994-2000 Polaris 300, eliminating guesswork on fitment and compatibility. You get a complete assembly ready to install, featuring premium components that refuse to compromise under sustained high-RPM operation or extreme load cycles.
- High-silicon aluminum forging
- 75.50mm oversize diameter
- Complete kit package included
- Forged pistons, rings, wrist pins
- Includes circlips
- E-Coated crown protection
- Enhanced ring groove coating
- E-Coated pin bore
- Increased compression ratio
- Optimized powerband delivery
- Polaris 300 (1994-2000)
- MPN: 721M07550
- Bolt-on installation








