Description
When you’re pushing your 2001-2005 Polaris 800 RMK to its limits, factory pistons won’t cut it. The Wiseco SK1315 piston kit delivers the strength and thermal stability needed to handle sustained high RPM running without sacrificing reliability. This complete rebuild solution gives you everything required for a professional-grade top-end refresh that’ll keep your sled performing at peak output.
Wiseco engineered this kit specifically for extreme snowmobile conditions. The high-silicone forged aluminum construction resists deformation under heat stress, while the precision ring design ensures proper cylinder sealing and combustion efficiency. You get the pistons, rings, wrist pins, circlips, and gasket kit—no guesswork, no missing components.
- 85mm bore diameter
- High-silicone forged aluminum
- Superior thermal stability
- Complete rebuild kit included
- Precision-matched ring design
- Durable wrist pins & circlips
- Top-end gasket kit included
- Fits 2001-2005 Polaris 800 RMK
- Wiseco part number SK1315
- Bolt-on installation







