Namura .040 Over Bore Piston Rings for Polaris Predator 500 & Outlaw 500 100.2mm

.040 Over Bore Piston Rings for Polaris

These .040 oversize piston rings are designed for Polaris Predator 500 and Outlaw 500 engines with a 100.2mm bore size. They replace worn rings after overbore to restore compression and performance.

Overview

These .040 over bore piston rings are sized at 100.2mm for use in Polaris Predator 500 and Outlaw 500 ATV engines that have been bored oversize. They provide a proper seal for the larger piston and cylinder. The rings help restore engine power and reduce oil consumption after a top-end rebuild.

Built For Performance

• Precise .040 oversize at 100.2mm bore
• Includes compression rings and oil ring
• Manufactured from high-strength materials for durability
• Direct fit for Polaris 500cc single-cylinder engines
• Restores compression and reduces blow-by

Fits These Machines

• for Polaris Predator 500
• for Polaris Outlaw 500

On-The-Job Use

• Sport ATV racing and trail riding
• Engine rebuild after wear or damage
• Upgrading to oversize piston for increased displacement
• Restoring lost power in high-hour engines
• Used in both recreational and competitive environments

Specs At A Glance

Good To Know

Q: Do these rings come with a piston? A: No, this is only the ring set; the oversize piston must be purchased separately.

Q: Can I use these rings on a standard bore cylinder? A: No, they are made for a cylinder that has been bored .040 over; using on standard bore will cause improper fit.

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