Namura Standard Bore Piston Kit for Arctic Cat 2009-2021 300 ATV's 72.7mm

Standard Bore Piston Kit 72.7mm for Arctic Cat

This standard bore piston kit replaces the OEM piston assembly for Arctic Cat 300 ATV engines with a 72.7mm bore size, restoring compression and power.

Overview

The Namura standard bore piston kit is a direct-fit replacement for Arctic Cat 300 ATVs manufactured between 2009 and 2021. It includes a precision-machined piston, rings, wrist pin, and circlips to refresh worn or damaged top-end components. This piston kit delivers reliable performance for recreational and utility ATV riding.

Built For Performance

• 72.7mm standard bore size matches factory specifications
• High-silicone aluminum alloy construction for durability and heat dissipation
• Precision-cut ring grooves ensure proper ring seal and compression
• Includes a quality wrist pin and retaining circlips for secure installation
• Manufactured under strict quality control for consistent fit and finish

Fits These Machines

• for Arctic Cat 300 2×4 ATV (2009-2021)
• for Arctic Cat 300 4×4 ATV (2009-2021)
• for Arctic Cat 300 XT ATV (2009-2021)
• for Arctic Cat 300 DVX ATV (2009-2021)

On-The-Job Use

• Trail riding on moderate terrain
• Farm and ranch utility work
• Recreational off-road adventures
• Engine rebuild or top-end overhaul

Specs At A Glance

Good To Know

Q: Does this kit include piston rings? A: Yes, the kit comes with a full set of piston rings pre-gapped for the 72.7mm bore.

Q: Can I install this piston without machining the cylinder? A: This standard bore piston is intended for a cylinder in good condition; minor honing may be needed for proper ring seating.

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