Namura Standard Bore Size C (79.97mm) Piston Kit for Polaris 800 HO ATV UTV 80mm

Standard Bore Size C (79.97mm) Piston Kit for Polaris

This piston kit replaces the original piston in a Polaris 800 HO engine, delivering a precise 79.97mm bore for consistent compression and power.

Overview

The Standard Bore Size C (79.97mm) Piston Kit for Polaris 800 HO ATV and UTV engines is a direct-fit replacement component designed to restore engine performance. This piston kit uses a 79.97mm bore diameter to match factory specifications, ensuring reliable operation in demanding off‑road conditions.

Built For Performance

• Precision‑machined 79.97mm bore diameter for accurate cylinder clearance
• High‑strength aluminum alloy construction reduces weight without sacrificing durability
• Includes piston rings, wrist pin, and circlips for a complete replacement
• Engineered to withstand high RPM loads common in Polaris 800 HO engines
• Compatible with standard cylinder bores requiring minimal honing

Fits These Machines

• for Polaris 800 HO ATV
• for Polaris 800 HO UTV

On‑The‑Job Use

• Trail riding and recreational ATV use where consistent throttle response is needed
• Utility work requiring reliable engine power over long hours
• Engine rebuilds and top‑end overhauls in Polaris 800 HO vehicles

Specs At A Glance

Good To Know

Q: What is the difference between Standard Bore Size C and Size A? A: Size C uses a 79.97mm bore while Size A uses 79.95mm; choose the size that matches your cylinder’s measured wear condition.

Q: Can I install this kit without machining the cylinder? A: Typically yes, but always measure the cylinder bore for roundness and taper; a light hone may be needed for proper ring seating.

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