SPI Standard Bore Piston Kit for Polaris XC 500, XC SP 500 RMK Classic 70.5mm

SPI Standard Bore Piston Kit for Polaris

This aftermarket SPI standard bore piston kit is designed for Polaris XC 500, XC SP 500, and RMK Classic snowmobiles, featuring a 70.5mm bore diameter for reliable engine rebuilds.

Overview

This SPI standard bore piston kit for Polaris XC 500 and similar models is a direct replacement for worn pistons, restoring engine compression and performance. The 70.5mm bore size matches the factory specification, ensuring a precise fit for your Polaris snowmobile.

Built For Performance

• Cast aluminum piston with reinforced skirt for durability
• Includes piston rings, wrist pin, and circlips for a complete rebuild
• Precision-machined to OEM specifications for exact fitment
• Designed for standard bore applications, no cylinder boring required

Fits These Machines

• for Polaris XC 500
• for Polaris XC SP 500
• for Polaris RMK Classic

On-The-Job Use

• Use in snowmobile engine rebuilds for recreational riding
• Ideal for restoring power and reliability in high-mileage motors
• Commonly used in cross-country and trail riding snowmobiles

Specs At A Glance

Good To Know

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

Q: Is this piston compatible with aftermarket cylinders? A: It is designed for standard bore OEM cylinders and may not fit oversized or modified cylinders.

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