2 SPI .020 Over Bore Piston Kits for Ski-Doo 500 Fan Cooled 72.5mm SEE DESC

.020 Over Bore Piston Kits for Ski-Doo

This set of two .020 over bore piston kits is designed for Ski-Doo 500 fan-cooled engines, providing a 72.5mm bore size to restore compression and performance.

Overview

These two .020 over bore piston kits for Ski-Doo 500 fan-cooled snowmobiles replace worn pistons and rings to refresh engine power. The 72.5mm size matches the overbore specification for rebuilding cylinders. Each kit includes piston, rings, wrist pin, and circlips for a complete top-end overhaul.

Built For Performance

• High-strength aluminum alloy casting
• Precision-machined ring grooves
• Includes complete ring set for proper sealing
• Oversized .020 for cylinder clean-up
• Direct fit for Ski-Doo 500 fan cooled engine

Fits These Machines

• for Ski-Doo 500 Fan Cooled engine (vintage and newer models)

On-The-Job Use

• Snowmobile engine rebuilds
• Trail riding and recreational snowmobiling
• Winter sports and utility use
• Restoring compression and performance

Specs At A Glance

Good To Know

Q: Are these pistons compatible with stock cylinders? A: These are .020 over bore pistons; cylinders must be bored to match the 72.5mm size for proper fit.

Q: What is included in each kit? A: Each kit includes one piston, one set of rings, one wrist pin, and circlips for a complete piston installation.

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