Namura .060 Over Bore Piston & Gasket Kit for Polaris Sportsman 550 98.1mm

Namura .060 Over Bore Piston & Gasket Kit for Polaris

This .060 over bore piston and gasket kit for Polaris Sportsman 550 with 98.1mm bore replaces worn components to restore engine power and compression.

Overview

This Namura piston and gasket kit is a direct-fit replacement for Polaris Sportsman 550 ATVs requiring a .060 over size. It includes everything needed to refresh the top end, featuring a precision-machined piston and full gasket set. Ideal for riders seeking reliable performance after cylinder wear or rebuild.

Built For Performance

• High-strength aluminum alloy piston for durability
• Precision-machined ring grooves for optimal seal
• Includes complete gasket kit for hassle-free installation
• .060 over bore increases displacement and power
• Designed for exact fit in 98.1mm bore cylinders

Fits These Machines

• for Polaris Sportsman 550 (98.1mm bore)

On-The-Job Use

• Rebuilding Polaris Sportsman ATV engines
• Restoring lost compression from cylinder wear
• Increasing power output during top-end overhauls

Specs At A Glance

Good To Know

Q: What is important for proper fit? A: Ensure the cylinder is bored to 98.1mm for this .060 over size. Confirm compatibility with the Sportsman 550 model year.

Q: Does this kit include wrist pin and circlips? A: The kit includes the piston, rings, and gaskets; wrist pin and circlips may need to be purchased separately.

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