Namura .040 Over Bore Piston, Gasket Kit for Arctic Cat 2009-2021 300 ATV 73.7mm

Namura .040 Over Bore Piston and Gasket Kit for Arctic Cat

This aftermarket piston and gasket kit is designed for Arctic Cat 300 ATVs from 2009 to 2021, featuring a .040 over bore (73.7mm) to restore engine performance and reliability.

Overview

The Namura .040 over bore piston and gasket kit provides a complete solution for rebuilding the top end of your Arctic Cat 300 ATV engine. This kit includes a precision-machined piston, rings, and all necessary gaskets to ensure a proper seal and long-lasting performance. It is ideal for restoring compression and power in worn engines, making it a popular choice for ATV enthusiasts and repair shops.

Built For Performance

• Precision-machined from high-strength aluminum alloy for durability
• .040 over bore size (73.7mm) allows for cylinder reconditioning
• Includes high-quality piston rings for optimal compression
• Complete gasket set ensures leak-free assembly
• Tested to meet OEM specifications for reliable fit and function

Fits These Machines

• for Arctic Cat 300 ATV (2009–2021)

On-The-Job Use

• Replacing worn pistons in Arctic Cat 300 ATV engines
• Restoring engine power and performance after high mileage
• Performing a top-end rebuild for off-road riding and utility use
• Rebuilding engines for trail riding, hunting, or farm work

Specs At A Glance

Good To Know

Q: Will this piston kit work with my 2015 Arctic Cat 300? A: Yes, this kit fits Arctic Cat 300 models from 2009 to 2021, including 2015, provided your cylinder can be bored to .040 over. Always check your service manual for specifications.

Q: Do I need to replace the wrist pin and clips? A: This kit includes the piston and rings, but not the wrist pin or clips. We recommend reusing the original wrist pin if in good condition or ordering a separate wrist pin kit.

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