2 SPI .040 Over Bore Piston Kits for Ski-Doo 500 Fan Cooled Sleds 73mm SEE DESC

2 SPI .040 Over Bore Piston Kits for Ski-Doo 500 Fan Cooled Sleds

These SPI piston kits feature a .040 over bore with 73mm diameter for Ski-Doo 500 fan cooled sleds, restoring compression and power.

Overview

These piston kits are designed for Ski-Doo 500 fan cooled snowmobiles, using a .040 over bore at 73mm to refresh worn cylinders. Each kit includes two pistons for a complete top-end rebuild, ensuring reliable performance on the trail. The SPI brand delivers a cost-effective solution for Ski-Doo 500 fan cooled sleds.

Built For Performance

• Precision-machined from high-strength aluminum alloy
• .040 over bore size (73mm) for worn cylinder walls
• Includes rings and wrist pins for a complete installation
• Designed for Ski-Doo 500 fan cooled engines
• Meets OEM specifications for compression and clearance

Fits These Machines

• for Ski-Doo 500 Fan Cooled Sleds

On-The-Job Use

• Ideal for restoring snowmobile engines after wear or scoring
• Commonly used in recreational trail riding and backcountry sleds
• Perfect for winter maintenance and off-season rebuilds
• Applicable for Ski-Doo 500 fan cooled models requiring .040 over pistons

Specs At A Glance

Good To Know

Q: What bore size is this piston kit? A: These pistons are .040 over stock at 73mm, intended for Ski-Doo 500 fan cooled engines that have been bored to that size.

Q: Does the kit include wrist pins and rings? A: Yes, each piston kit includes rings and wrist pins for a complete installation, though always verify with your specific order.

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