Namura Standard Bore Size A Top End Kit for Polaris Sportsman 850 Scrambler 87mm

Namura Standard Bore Size A Top End Kit for Polaris

This top end kit rebuilds the cylinder and piston assembly for Polaris Sportsman 850 and Scrambler models with an 87mm standard bore.

Overview

The Namura standard bore size A top end kit is designed to restore engine performance in Polaris ATVs. This comprehensive kit includes all needed components for a reliable top end rebuild, ensuring your 87mm cylinder is properly fitted with standard size pistons and rings. The standard bore specification allows for a fresh surface without oversizing.

Built For Performance

• Includes piston, rings, pin, and circlips for a complete top end repair
• Precision-machined piston for accurate fit in 87mm bore
• High-strength aluminum alloy construction for durability
• Designed for standard bore applications
• Namura engineering ensures reliable performance and long service life

Fits These Machines

• for Polaris Sportsman 850
• for Polaris Scrambler

Specs At A Glance

Good To Know

Q: Does this kit include gaskets? A: The kit includes the piston, rings, pin, and circlips; gaskets are not included and should be purchased separately.

Q: Is this kit compatible with stock cylinder heads? A: Yes, the kit is designed to work with the original cylinder head as long as the cylinder is in good condition and within standard bore specs.

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