SPI .020 Over Bore Top End Repair Kit for Ski-Doo 550 Fan 2003-2020 76.5mm

.020 Over Bore Top End Repair Kit for Ski-Doo

This top end repair kit from SPI is engineered for Ski-Doo 550 Fan snowmobile engines from 2003 to 2020, featuring a .020-inch over bore size of 76.5mm to restore cylinder compression after a rebore.

Overview

Designed specifically for Ski-Doo 550 Fan models, this .020 over bore top end repair kit provides the piston, rings, and gaskets needed to complete a cylinder overhaul. It accommodates a bored-out cylinder measuring 76.5mm, ensuring a precise fit and reliable power delivery.

Built For Performance

• High-strength cast aluminum piston with reinforced skirt for durability
• Moly-coated ring set reduces friction and promotes quick break-in
• Includes wrist pin and circlips for secure assembly
• Complete gasket set for a leak-free seal

Fits These Machines

• for Ski-Doo 550 Fan (2003-2020)

On-The-Job Use

• Snowmobile trail riding and touring
• Engine rebuilding after wear or damage
• Off-trail and mountain riding applications

Specs At A Glance

Good To Know

Q: Can this kit be used on a standard bore cylinder? A: No, this kit is intended for cylinders that have been bored .020 over to 76.5mm; using it on a standard bore will result in incorrect fitment.

Q: Does the kit include the base gasket? A: Yes, the kit includes a full set of gaskets including the base and head gaskets for a complete installation.

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