2 SPI Piston Kits for Polaris 440 XCF TranSport Indy Trail Standard Bore 67.75mm

2 SPI Piston Kits for Polaris

These two aftermarket piston kits are designed to replace worn pistons in Polaris 440 XCF, TranSport, and Indy Trail snowmobiles, restoring compression and performance with a standard 67.75mm bore.

Overview

These 2 SPI Piston Kits are precision-engineered replacements for Polaris snowmobile engines. Each kit includes a piston, rings, and wrist pin for a standard 67.75mm bore. Ideal for rebuilding 440cc engines found in XCF, TranSport, and Indy Trail models.

Built For Performance

• Precision-machined from high-strength aluminum alloy for durability
• Matching ring set ensures optimal compression and oil control
• Lightweight design reduces reciprocating mass for smoother operation
• Includes wrist pin and circlips for complete installation
• Engineered to meet or exceed OEM specifications for Polaris 440 engines

Fits These Machines

• for Polaris 440 XCF
• for Polaris 440 TranSport
• for Polaris 440 Indy Trail

On-The-Job Use

• Snowmobile engine rebuilds requiring standard bore pistons
• Restoring compression lost due to wear or scoring
• Replacing pistons during top-end overhauls
• Improving engine performance in trail and utility snowmobiles

Specs At A Glance

Good To Know

Q: Are these pistons compatible with aftermarket cylinders? A: They are designed for standard 67.75mm bore; if your cylinder has been overbored, you will need oversized pistons.

Q: Do these kits include piston rings? A: Yes, each kit includes a matched set of rings and a wrist pin.

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