SPI .020 Over Bore Piston Kit for Polaris Indy 650 SKS RXL 1988-1997 68.25mm

SPI .020 Over Bore Piston Kit for Polaris

This SPI .020 over bore piston kit replaces the original pistons in Polaris Indy 650, SKS, and RXL snowmobiles from 1988-1997 with a 68.25mm bore size, providing a reliable replacement for engine rebuilds.

Overview

This SPI .020 over bore piston kit is specifically designed for Polaris Indy 650, SKS, and RXL models from 1988 to 1997. It features a 68.25mm bore and restores compression and power in your two-stroke snowmobile engine. This piston kit is a reliable choice for rebuilds and top-end overhauls.

Built For Performance

• Precision-machined from high-silicon aluminum alloy for strength and heat resistance
• Includes chrome-plated piston rings for reduced wear and long life
• Comes with wrist pins and circlips for a complete installation
• Weight-matched pistons for balanced engine operation
• .020 over bore size accommodates worn or reconditioned cylinders

Fits These Machines

• for Polaris Indy 650 (1988-1997)
• for Polaris Indy 650 SKS (1988-1997)
• for Polaris Indy 650 RXL (1988-1997)

On-The-Job Use

• Trail riding and snowmobile touring with reliable engine performance
• Mountain riding requiring consistent power delivery
• Replacing worn pistons after high-mileage use
• Rebuilding engines after top-end failure for extended service life

Specs At A Glance

Good To Know

Q: What is included in this piston kit? A: The kit typically includes two pistons, rings, wrist pins, and circlips for a complete rebuild on twin-cylinder engines.

Q: Does this kit require any modifications? A: It is a direct replacement for the original pistons when boring the cylinders to .020 over, but always confirm fitment with your specific engine serial number.

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