Namura .020 Over Bore Piston Kit for Polaris 1990-1993 350 2-Stroke ATV's 80.5mm

Namura .020 Over Bore Piston Kit for Polaris

This Namura .020 over bore piston kit is a direct replacement for Polaris 350 2-stroke ATVs from 1990 to 1993, featuring an 80.5mm bore size to restore compression and power after a cylinder rebore.

Overview

The Namura .020 over bore piston kit is designed for Polaris 350 2-stroke ATVs, providing reliable performance and a precise fit. This 80.5mm piston kit includes the piston, rings, and wrist pin, making it an essential component for engine rebuilds on 1990-1993 Polaris 350 models.

Built For Performance

• Made from high-strength aluminum alloy for durability and heat resistance
• Precision-machined to .020 over size for a proper cylinder clearance
• Includes premium piston rings for optimal compression and oil control
• Wrist pin and circlips included for complete assembly
• Designed to meet or exceed OEM specifications for reliable operation

Fits These Machines

• for Polaris 350 2-Stroke ATVs (1990-1993)

Specs At A Glance

Good To Know

Q: Does this kit include a gasket? A: No, this is a piston kit only and does not include gaskets; you will need to purchase a separate gasket set for a complete rebuild.

Q: Can this piston be used with a standard bore cylinder? A: No, this .020 over piston requires the cylinder to be bored to the corresponding oversize; a standard bore cylinder will not provide the proper clearance.

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