Namura .020 Over Bore Piston & Gasket Kit fits Polaris 330 4-Stroke ATVs 79mm

Namura .020 Over Bore Piston & Gasket Kit for Polaris 330 4-Stroke ATVs

This Namura .020 over bore piston and gasket kit is a high-performance replacement for Polaris 330 4-stroke ATV engines with a 79mm bore, offering increased displacement and reliable sealing for improved power and longevity.

Overview

The Namura .020 over bore piston and gasket kit is designed for Polaris 330 4-stroke ATVs, providing a direct fit for engines requiring a 79mm piston. This kit includes a piston, rings, wrist pin, circlips, and a complete gasket set, making it an all-in-one solution for engine rebuilds. It is ideal for restoring performance or enhancing power on trail and utility ATVs.

Built For Performance

• Precision-machined from high-strength aluminum alloy
• Includes .020 over bore piston for increased displacement
• Complete gasket set ensures leak-free assembly
• Plasma-moly rings reduce friction and improve compression
• Designed to match OEM specifications for Polaris 330 engines

On-The-Job Use

• Rebuilding Polaris 330 ATV engines after wear or damage
• Increasing displacement for more torque and horsepower
• Replacing worn pistons in high-mileage ATVs
• Restoring compression for better starting and fuel efficiency

Specs At A Glance

Good To Know

Q: Does this kit include a cylinder? A: No, this is a piston and gasket kit only; the cylinder must be bored .020 over to match the piston size.

Q: Can this be used in a Polaris Trail Blazer 330? A: Yes, it is compatible with Polaris 330 engines used in models like the Trail Blazer and Sportsman, but confirm serial number for exact fitment.

Slight variation in finish or dimensions may occur between production runs, and confirm compatibility before ordering.