2 Namura Standard Bore Size B Piston Kits for Polaris Sportsman 700 Ranger 80mm

Standard Bore Size B Piston Kits for Polaris

These 2 Namura standard bore size B piston kits are replacement pistons designed for Polaris Sportsman 700 and Ranger 80mm engines, providing reliable power restoration for engine rebuilds.

Overview

These 2 Namura standard bore size B piston kits are direct replacement pistons for Polaris Sportsman 700 and Ranger 80mm applications. The kits include pistons, rings, wrist pins, and clips to rebuild engines and restore performance. Each piston is precision-machined to meet OEM specifications for a reliable fit.

Built For Performance

• Precision-cast from high-strength aluminum alloy for durability
• Includes complete set of rings, wrist pin, and circlips
• Standard bore size B for 80mm cylinder bores
• Designed to match OEM fitment and compression ratios
• Phosphate-coated skirts reduce friction and wear

Fits These Machines

• for Polaris Sportsman 700
• for Polaris Ranger (80mm bore)

On-The-Job Use

• Engine rebuilds and overhauls
• Restoring compression and power loss
• Off-road and trail riding applications
• Utility and work vehicle maintenance

Specs At A Glance

Good To Know

Q: What does size B mean for pistons? A: Size B indicates a slight oversize compared to standard, often used when cylinders have minimal wear; it is a common standard rebuild size for this engine.

Q: Are the piston rings pre-gapped? A: Rings are pre-gapped to specification but should always be checked and adjusted during installation for proper clearance.

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