Namura .020 Over Bore Piston Rings for Polaris Sportsman 550 2009-2014 - 97.1mm

Namura .020 Over Bore Piston Rings for Polaris

These Namura .020 over bore piston rings are designed for Polaris Sportsman 550 models from 2009 to 2014, measuring 97.1mm, to restore compression in rebuilt engines.

Overview

These Namura .020 over bore piston rings are precision-made for Polaris Sportsman 550 ATVs from 2009 to 2014, with a 97.1mm bore size. They are ideal for engine rebuilds requiring oversized rings to restore cylinder seal and compression. Using quality piston rings ensures reliable engine performance.

Built For Performance

• Precision-ground ring faces for optimal cylinder seal
• Ductile iron material for wear resistance
• .020 over bore size for reconditioned cylinders
• Includes top and second compression rings plus oil ring set
• Designed for high-rpm and high-torque Polaris engines

Fits These Machines

• for Polaris Sportsman 550 (2009-2014)

On-The-Job Use

• Engine rebuilds after top-end wear
• Restoring compression and reducing oil consumption
• Performance restoration for trail and utility ATVs

Specs At A Glance

Good To Know

Q: Do I need to hone the cylinder before installing these rings? A: Yes, proper cylinder preparation with a cross-hatch hone is recommended for ring seating and longevity.

Q: Are these rings compatible with stock pistons? A: They are designed for .020 over bore pistons; stock pistons require standard size rings.

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