Namura .040 Over Bore Piston Kit for Kawasaki Prairie 650 & Brute Force 650 81mm
Namura .040 Over Bore Piston Kit for Kawasaki Prairie 650 & Brute Force 650 81mm
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.040 Over Bore Piston Kit for Kawasaki
This Namura .040 over bore piston kit is a high-performance replacement for Kawasaki Prairie 650 and Brute Force 650 ATVs, offering an 81mm bore for increased displacement and power. The kit includes a forged piston, rings, and wrist pin for a direct fit upgrade. Designed for riders seeking reliable power gains from their .040 over bore rebuild.
Overview
The Namura .040 over bore piston kit provides a precision-machined 81mm piston for Kawasaki Prairie 650 and Brute Force 650 engines, delivering enhanced compression and durability. This piston kit is engineered for a secure fit and improved performance over stock, making it a trusted choice for rebuilds and performance upgrades. Whether restoring or modifying your Kawasaki ATV, this .040 over bore piston kit delivers dependable results.
Built For Performance
- 81mm bore size for increased displacement and power output
- Forged aluminum construction for high strength and heat resistance
- Precision-machined pin bore and ring grooves for accurate fit
- Includes piston, rings, and wrist pin for complete installation
- .040 overbore allows for cylinder cleanup and performance gain
- Compatible with standard Kawasaki Prairie 650 and Brute Force 650 connecting rods
Fits These Machines
- for Kawasaki Prairie 650
- for Kawasaki Brute Force 650
On-The-Job Use
- Trail riding and recreational ATV use
- Mudding and off-road performance builds
- Engine rebuilds for Kawasaki 650cc twin-cylinder ATVs
- Performance upgrades for increased torque and horsepower
Specs At A Glance
| Bore Size | 81mm |
| Oversize | .040 inch |
| Material | Forged aluminum |
| Included Components | Piston, rings, wrist pin |
| Application | Kawasaki Prairie 650 and Brute Force 650 |
Good To Know
Q: Do I need to rejet the carburetor after installing this piston kit? A: It is often recommended to rejet the carburetor when increasing bore size to optimize air-fuel mixture for the additional displacement.
Q: Will this piston kit fit a stock cylinder with just a .040 overbore? A: Yes, the kit is designed for cylinders bored to 81mm (0.040 over standard), but always measure your cylinder and confirm piston clearance before assembly.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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