Namura .040 Over Bore Piston Kit for Polaris Outlaw 50 fits 2008-2019 40mm

Namura .040 Over Bore Piston Kit for Polaris Outlaw 50

This Namura .040 over bore piston kit is a direct replacement piston assembly designed to restore compression and power in Polaris Outlaw 50 ATVs from 2008 through 2019, featuring a 40mm bore size for engines requiring a .040 overbore.

Overview

This Namura .040 over bore piston kit provides a high-quality aftermarket piston for Polaris Outlaw 50 models, delivering reliable performance and a precise fit for 2008-2019 machines. The kit includes the piston, rings, and wrist pin for a complete top-end rebuild, making it a cost-effective solution for restoring lost power and compression in your Polaris Outlaw 50.

Built For Performance

• Precision-machined from high-silicon aluminum alloy for strength and heat dissipation
• Includes a wrist pin and circlips for secure installation
• Ring set engineered for optimal compression and oil control
• .040 overbore size accommodates worn cylinders that require oversizing
• 40mm bore diameter matches factory specifications for Polaris Outlaw 50

Fits These Machines

• for Polaris Outlaw 50 (2008-2019)

On-The-Job Use

• Rebuilding the top end of a Polaris Outlaw 50 ATV engine
• Replacing a failed or worn piston to restore engine performance
• Performing a complete engine overhaul for increased reliability
• Used in youth ATV racing or recreational riding applications

Specs At A Glance

Good To Know

Q: Do I need to replace the piston rings when installing this kit? A: Yes, the kit includes new rings, and it is recommended to always install fresh rings with a new piston to ensure proper sealing and break-in.

Q: Can I use this piston kit with a cylinder that has not been bored? A: No, this is a .040 overbore piston, so the cylinder must be bored to match the 40mm size to achieve the correct clearance.

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