Std Bore Pistons for Ski-Doo Blizzard 5500 MX 503cc 1979-1984 Pair

Std Bore Pistons for Ski-Doo Blizzard 5500/MX

This pair of standard bore pistons is a direct-fit replacement set for the Ski-Doo Blizzard 5500 and MX with the 503 cc engine, sized to the factory standard bore.

Overview

This pair of std bore pistons is made for the Ski-Doo Blizzard 5500 and MX running the 503 cc twin. The std bore pistons restore compression and smooth running after a top-end refresh. Snowmobile owners rebuilding a 1979-1984 Blizzard will find this piston pair a practical match for the original bore size.

Built For Performance

• Standard bore sizing to match the factory cylinder
• Sold as a matched pair for the 503 cc twin
• Precision-machined skirt and crown for a clean fit
• Designed for two-stroke snowmobile top-end rebuilds
• Durable alloy construction for long service life

Fits These Machines

• for Ski-Doo Blizzard 5500 (1979-1984)
• for Ski-Doo Blizzard MX (1979-1984)
• 503 cc engine applications

On-The-Job Use

• Top-end rebuilds on vintage snowmobiles
• Restoring compression after a seize or worn rings
• Seasonal engine refresh before winter riding

Specs At A Glance

Good To Know

Q: Are these pistons oversized or standard? A: These are standard bore pistons, sized to the original factory cylinder bore. If your cylinder has been bored oversize, measure before ordering.

Q: Do I need to replace rings and wrist pins at the same time? A: It is common practice to fit new rings, wrist pins, and circlips during a top-end rebuild. Check what is included before you begin the job.

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