SPI Standard Bore Piston Kit for Polaris 550 Fan Cooled fits 2022-2025 73mm

SPI Standard Bore Piston Kit for Polaris 550 Fan Cooled

This SPI standard bore piston kit is designed for Polaris 550 Fan Cooled engines from 2022 to 2025, featuring a 73mm bore size to restore top-end performance.

Overview

The SPI standard bore piston kit is a direct replacement for Polaris 550 Fan Cooled models, providing a precise 73mm piston and rings to rebuild the top end. This kit ensures reliable power delivery and extends engine life for Polaris utility and sport vehicles.

Built For Performance

• 73mm bore size matched to factory specifications
• High-strength aluminum alloy piston construction
• Precision-machined ring grooves for consistent compression
• Includes piston, rings, wrist pin, and circlips
• Designed for 2022-2025 Polaris 550 Fan Cooled engines

Specs At A Glance

Good To Know

Q: Does this kit include a wrist pin bearing? A: The kit includes the wrist pin and circlips, but the wrist pin bearing is typically sold separately; check your engine's requirements.

Q: Can this piston be used in other Polaris models? A: This piston is specifically designed for the Polaris 550 Fan Cooled engine; other models may require different bore sizes or piston configurations.

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