Namura .020 Over Piston Rings for Polaris Sportsman 90 Outlaw 2007-2014 47.5mm

.020 Over Piston Rings for Polaris

These .020 over piston rings for Polaris are designed to provide a tight seal in over-bored cylinders to maintain engine compression.

Overview

The .020 over piston rings for Polaris are precision-machined to fit modified or repaired cylinder bores for restored power output. This set of .020 over piston rings for Polaris ensures optimal oil control and reduced blow-by during engine operation. These rings are intended for mechanics performing a professional engine overhaul.

Built For Performance

• Designed for .020 over-sized pistons
• Chrome or nitrided finish for wear resistance
• Engineered for precise tension against cylinder walls
• Compatible with standard fuel and oil types

Fits These Machines

• for Polaris Sportsman 90
• for Polaris Outlaw 90

On-The-Job Use

• Restoring compression in re-bored engine cylinders
• Repairing power loss due to ring wear
• Finishing an engine top-end rebuild project

Specs At A Glance

Good To Know

Q: Do I need to gap these rings before installation? A: Yes, checking the ring end gap inside the cylinder is critical for safe engine operation. A: Ensure the gap matches the manufacturer specifications for the specific piston kit.

Q: Why use over-sized rings? A: They are required when the engine cylinder has been bored out to remove imperfections. A: Standard size rings will not create an adequate seal in an over-bored cylinder.

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