SPI Standard Bore Piston Kit for Ski-Doo Formula III 600 fits 1995-1999 64.5mm

Standard Bore Piston Kit for Ski-Doo

This standard bore piston kit replaces the worn piston in Ski-Doo Formula III 600 snowmobiles from 1995 to 1999, using a 64.5mm bore size.

Overview

The SPI Standard Bore Piston Kit is a direct replacement for Ski-Doo Formula III 600 engines, providing a new piston, rings, wrist pin, and retaining clips. It restores compression and performance for 1995‑1999 models with a 64.5mm bore, helping your snowmobile run like new.

Built For Performance

• Forged aluminum piston for strength and heat resistance
• Chrome‑plated steel rings for long life
• Precision‑machined wrist pin with circlips
• Standard bore size eliminates need for cylinder machining
• Designed for Ski‑Doo Rotax 600 engine

Fits These Machines

• for Ski‑Doo Formula III 600 (1995‑1999)

On-The-Job Use

• Snowmobile trail riding
• Cross‑country touring
• Engine rebuild and top‑end refresh
• Winter recreation and competition

Specs At A Glance

Good To Know

Q: Will this piston kit fit a 1995‑1999 Ski‑Doo Formula III 600? A: Yes, it is specifically designed for those model years with a 64.5mm standard bore. Confirm your engine serial number before ordering.

Q: What other maintenance should I do when replacing the piston? A: It is recommended to inspect the cylinder bore and replace the gaskets and seals for a complete top‑end overhaul.

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