SPI Standard Bore HyperDryve Piston Kit for Polaris 800 Snow fits 2017-2023 85mm

SPI Standard Bore HyperDryve Piston Kit for Polaris 800 Snow

This piston kit is designed to restore compression and power in Polaris 800 Snow engines from 2017 to 2023, featuring a standard bore of 85mm and HyperDryve coating for reduced friction.

Overview

The SPI Standard Bore HyperDryve Piston Kit is a direct replacement piston assembly for Polaris 800 Snow snowmobile engines. It delivers reliable performance and durability for riders who demand consistent power. The 85mm standard bore size ensures a precise fit for stock engines without the need for overboring.

Built For Performance

• HyperDryve coating reduces friction and wear for longer engine life
• Precision-machined from high-strength aluminum alloy
• Includes piston rings, wrist pin, and circlips for complete installation
• Standard bore 85mm eliminates the need for cylinder machining
• Designed to meet or exceed OEM specifications

Fits These Machines

• for Polaris 800 Snow (2017-2023)

On-The-Job Use

• Snowmobiling on trails and backcountry terrain
• Ice racing and high-performance riding
• Engine rebuilds and maintenance for winter sports
• Replacement of worn pistons due to high mileage or seizure

Specs At A Glance

Good To Know

Q: Is this piston kit compatible with aftermarket cylinders? A: This kit is designed for standard bore Polaris 800 Snow cylinders; for aftermarket or oversized cylinders, use the corresponding oversized piston kit.

Q: What is the recommended break-in procedure after installation? A: Follow the engine builder's guidelines, typically a few heat cycles at low throttle before full load operation ensures 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.