Description
A worn or damaged piston directly undermines engine reliability and performance—especially in high-demand Polaris 850 applications where every combustion cycle matters. The PROX Piston Kit restores factory specifications with precision-engineered components that withstand the rigors of racing, trail riding, and sustained high-RPM operation. This is a foundational rebuild component that ensures your engine performs at peak efficiency and longevity.
Technical Specifications:
- Fitment: Polaris 850 (specific)
- Manufacturer Part Number: 01.5819.000
- Material: OEM-equivalent alloy
- Installation: Professional engine rebuild
- Complete piston assembly
- Factory-spec tolerances
- Includes piston rings
- Pin and retainers included









