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

SPI .040 Over Bore Piston Kit for Polaris

This SPI .040 over bore piston kit is a replacement piston set designed for Polaris Classic Touring 500 snowmobile engines from 1997 to 2000, featuring a 73mm bore size for restoring compression and performance.

Overview

The SPI .040 over bore piston kit provides a direct fit replacement for Polaris Classic Touring 500 models, delivering reliable power and durability. This piston kit includes a 73mm piston and rings, engineered to meet or exceed OEM specifications for a smooth and efficient rebuild.

Built For Performance

• Precision-machined 73mm piston from high-strength aluminum alloy
• .040 over bore design allows for cylinder oversize cleanup
• Includes piston rings, wrist pin, and circlips for complete installation
• Designed to handle high RPM and thermal loads of snowmobile engines
• Direct replacement for Polaris Classic Touring 500 1997-2000

Fits These Machines

• for Polaris Classic Touring 500 (1997-2000)

On-The-Job Use

• Engine rebuilds on Polaris snowmobiles
• Restoring compression on high-mileage Classic Touring models
• Overbore applications when cylinders need resizing
• Performance restoration for trail and utility snowmobiles

Specs At A Glance

Good To Know

Q: Is this piston kit compatible with standard bore cylinders? A: No, this is a .040 over bore piston kit intended for use after cylinders have been bored oversize; it will not fit standard bore cylinders.

Q: Does this kit include the piston rings? A: Yes, the kit includes piston rings, wrist pin, and circlips for a complete installation.

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