SPI Standard Bore Piston Rings for Polaris 800 Snow most 2000-2005 Twins 85mm

SPI Standard Bore Piston Rings for Polaris 800 Snow

These SPI standard bore piston rings fit Polaris 800 Snow twin-cylinder snowmobile engines from 2000 to 2005 with an 85mm bore, providing a direct replacement for worn factory rings. The piston rings restore compression and reduce smoke in two-stroke engines. These rings are ideal for snowmobile enthusiasts performing top-end maintenance on their Polaris 800 sleds.

Overview

This set of SPI standard bore piston rings is designed for the Polaris 800 Snow twin-cylinder engines produced between 2000 and 2005, with a bore size of 85mm. The rings are made from durable cast iron for reliable sealing in snowmobile applications. They replace worn rings to restore power and reduce oil consumption in high-performance two-stroke engines.

Built For Performance

• Standard bore size of 85mm for direct replacement in stock cylinders
• Cast iron construction for long wear in high-revving two-stroke engines
• Precision ground ring ends for proper gap clearance
• Designed to work with OEM ring grooves without modification
• Helps restore lost compression and improve cold-start performance

Fits These Machines

• for Polaris 800 Snow twin models 2000-2005

On-The-Job Use

• Snowmobile trail riding and backcountry exploration
• Winter ice fishing and utility sled use
• Engine rebuilds during top-end overhaul

Specs At A Glance

Good To Know

Q: Will these work on a Polaris 800 that has been bored oversize? A: No, these are standard bore rings for a stock 85mm cylinder; if your cylinder has been bored, you need oversize rings.

Q: Do these rings come with a manufacturer warranty? A: SPI offers a limited warranty against defects; check with your seller for specific return policies.

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