Description
If you’re pushing your Grizzly 600 hard—whether on the trail or in competition—stock pistons won’t survive sustained high-RPM abuse. This Wiseco kit delivers forged-piston durability with minimal thermal expansion, giving you the strength and reliability needed for aggressive riding or engine rebuilds. Everything you need for a complete top-end refresh comes in one box.
- High-silicone forged pistons
- Complete ring set
- Wrist pins included
- Circlips included
- Top-end gasket kit
- Fits Yamaha YFM600FW Grizzly 4×4
- 1998–2001 model years
- Superior heat resistance
- Minimal thermal expansion
- Wiseco-matched components
- Non-interchangeable ring design
- Bolt-on installation
- MPN: PK1059









