2 SPI .040 Over Bore Piston Kits for Polaris Classic Touring 500 1997-2000 73mm

SPI .040 Over Bore Piston Kits (Set of 2) for Polaris Classic Touring 500

These SPI .040 over bore piston kits are designed for Polaris Classic Touring 500 snowmobiles from 1997 to 2000, providing a 73.00mm bore size for engine rebuilds. Each kit includes two pistons, rings, and wrist pins for a complete top-end overhaul.

Overview

This SPI .040 over bore piston kit offers a direct replacement for Polaris Classic Touring 500 engines needing a .040 oversize piston. The 73.00mm bore size ensures a precise fit for worn cylinders, restoring compression and performance. Ideal for DIY mechanics and professional rebuilders, this piston kit delivers reliable power for your snowmobile.

Built For Performance

• Precision-machined from high-strength aluminum alloy for durability
• Includes premium piston rings for optimal sealing
• Wrist pins and circlips included for complete installation
• Designed for .040 over bore applications to refresh worn cylinders
• Manufactured to OEM specifications for reliable fitment

Fits These Machines

• for Polaris Classic Touring 500 (1997-2000)

On-The-Job Use

• Top-end engine rebuild for Polaris snowmobiles
• Restoring compression and power in high-mileage engines
• Replacing worn pistons due to scoring or ring failure
• Performance rebuilds requiring oversize pistons

Specs At A Glance

Good To Know

Q: Do these piston kits come with rings? A: Yes, each kit includes two pistons, piston rings, wrist pins, and circlips for a complete installation.

Q: Are these pistons compatible with stock cylinders? A: These are .040 over bore pistons, so your cylinders must be bored to 73.00mm for proper fitment.

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