SPI Piston Ring for Polaris 440 XCF TranSport Indy Trail .030 Over Bore 68.5mm

Piston Ring for Polaris

This SPI piston ring is engineered to maintain proper compression and combustion efficiency for Polaris 440 XCF TranSport Indy Trail engines with .030 over bore cylinders.

Overview

The SPI piston ring provides a precise seal between the piston and the cylinder wall to ensure engine power is not lost. This SPI piston ring is designed for enthusiasts who demand reliable combustion and consistent performance. Utilizing this SPI piston ring allows for proper thermal transfer during engine operation.

Built For Performance

• Precision machined for an exact bore fit
• Constructed from high-tensile strength alloy
• Optimized for efficient heat dissipation
• Provides a tight seal to maintain cylinder compression

On-The-Job Use

• Restoring engine compression during top-end rebuilds
• Replacing worn rings after high-hour operation
• Ensuring power output consistency in cold environments

Specs At A Glance

Good To Know

Q: Do I need to check ring end gap before installation? A: Always verify the ring end gap in the cylinder to ensure it meets factory specifications before final assembly.

Q: Is this suitable for high-rpm riding? A: These rings are designed to withstand the operational demands of performance snowmobile engines.

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