Namura .040 Over Bore Piston Rings for Kawasaki 650 Brute Force & Prairie 81mm

.040 Over Bore Piston Rings for Kawasaki

These Namura .040 Over Bore Piston Rings seal the cylinder gap to maintain proper engine compression and combustion efficiency for 81mm pistons.

Overview

These .040 Over Bore Piston Rings are used to manage oil control and compression sealing in the engine block. These .040 Over Bore Piston Rings are specifically sized for cylinders that have been machined to a larger diameter. They are ideal for technicians and enthusiasts performing a rebuild on Kawasaki Brute Force and Prairie machines.

Built For Performance

• Designed for 81mm piston diameters
• Chrome-plated or nitride-treated for durability
• Provides consistent pressure across the stroke
• Engineered to minimize friction and oil consumption
• Meets or exceeds OEM ring performance levels

Fits These Machines

• for Kawasaki Brute Force 650
• for Kawasaki Prairie 650

Specs At A Glance

Q: Are these rings compatible with high-compression pistons? A: These rings are designed for standard replacement or service of 81mm pistons; confirm compatibility with your specific piston manufacturer. Q: Do I need to hone the cylinder before installation? A: Yes, a proper cross-hatch hone is required for correct ring seating and break-in.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.