040 Over Pistons Pair for Ski-Doo MXZ 380 2002-2006 Snowmobile

0.040 Over Pistons for Ski-Doo MXZ 380

This pair of 0.040 over pistons is a rebuild component for the Ski-Doo MXZ 380 engine, sized to restore bore dimensions after cylinder honing or resleeving.

Overview

These 0.040 over pistons for the Ski-Doo MXZ 380 are a matched pair built for engine rebuilds that need an oversize bore. Each piston is sized to fit a cylinder bored 0.040 in. over standard, helping restore compression and piston-to-wall clearance. They suit riders and mechanics rebuilding a 380 cc twin for trail use.

Built For Performance

• 0.040 in. oversize sizing to match a rebored cylinder
• Sold as a matched pair for a twin-cylinder engine
• Cast piston construction suited to stock and lightly modified engines
• Piston skirt profile shaped for stable running clearance
• Replacement sizing for worn or scored original bores

Fits These Machines

• for Ski-Doo MXZ 380 (2002-2006)

On-The-Job Use

• Top-end rebuilds after cylinder honing or boring
• Restoring compression on high-mileage MXZ 380 engines
• Trail riding on older Ski-Doo snowmobiles
• Workshop repairs where an oversize bore is required

Specs At A Glance

Good To Know

Q: Do I need to bore my cylinder to fit these pistons? A: Yes, 0.040 over pistons require the cylinder to be bored and honed to the matching oversize dimension before assembly.

Q: Are piston rings included? A: Check the listing contents before ordering, since ring sets are often sold separately from the pistons on oversize rebuild parts.

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