Namura Standard Bore Piston Rings for Polaris 300 Xplorer Xpress Big Boss 74.5mm

Standard Bore Piston Rings for Polaris

These standard bore piston rings for Polaris maintain high compression and regulate oil within the 74.5mm engine cylinder.

Overview

These standard bore piston rings for Polaris are designed to provide a tight seal against the cylinder wall for consistent power output. Relying on these standard bore piston rings for Polaris helps in extending the operational lifespan of your engine after a rebuild. They are crafted for a precise fit within a 74.5mm diameter cylinder.

Built For Performance

• High durability construction for longevity
• Maintains consistent cylinder pressure
• Reduces oil bypass in the combustion chamber
• Precision engineered for standard factory bores

Fits These Machines

• for Polaris 300 Xplorer
• for Polaris Xpress
• for Polaris Big Boss

Specs At A Glance

Good To Know

Q: Are these for a stock piston? A: Yes, these rings are intended for a standard 74.5mm bore cylinder.

Q: Should the cylinder be honed before installing? A: A light cylinder hone is recommended to assist in the seating process of the new rings.

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