Description
If you’re facing worn piston rings, a scored cylinder, or metal fatigue in your Grizzly 660’s engine, a complete rebuild is your path back to reliable performance. The Wiseco Engine Kit gives you OEM-quality components engineered to restore your ATV’s power delivery and extend engine life without the expense of sourcing parts individually. This is a bolt-together solution for riders who demand dependability in the field.
What’s Included:
- Complete piston assembly
- Crankshaft and rod assembly
- Main bearings and seals
- Complete gasket set
- Hour meter with bracket
- Detailed rebuild instructions
Technical Specifications:
- Fitment: Yamaha Grizzly 660 (2002–2008)
- Also fits: Yamaha Rhino 660 (2004–2007)
- MPN: PWR148100
- Kit type: Full top and bottom-end
- Piston construction: Forged aluminum alloy
- Installation: Professional assembly recommended
- Includes all gaskets and seals
- Quality inspected components









