040 Over Pistons Pair for Ski-Doo Skandic 377 1982-1987 Snowmobile

.040 Over Pistons for Ski-Doo Skandic 377

These .040 over pistons are a matched pair of oversized pistons for the Ski-Doo Skandic 377, sized to fit a bored cylinder and restore compression on a worn top end.

Overview

These .040 over pistons for the Ski-Doo Skandic 377 give a rebuild a fresh bore size when the original cylinder has been honed or bored past stock. The pair suits riders rebuilding a tired 377 single for trail and utility work, and the .040 over pistons let a machined cylinder come back to spec with proper piston-to-wall clearance. Sold as a pair for a complete top-end job.

Built For Performance

• .040 inch oversize bore to match a rebored cylinder
• Sold as a matched pair for one engine rebuild
• Cast piston construction suited to a fan-cooled single
• Sized for the 377 cc Rotax-style engine family
• Ring lands machined to accept standard ring sets for the oversize bore

Fits These Machines

• for Ski-Doo Skandic 377, 1982-1987

On-The-Job Use

• Top-end rebuild after cylinder boring or honing
• Restoring compression on a high-hour 377 engine
• Utility and trail sled maintenance
• Seasonal refresh before winter riding

Specs At A Glance

Good To Know

Q: Do I need to bore my cylinder to use these pistons? A: Yes, a .040 over piston requires the cylinder to be bored and honed to the matching oversize before assembly. Confirm the finished bore size with your machinist.

Q: Are rings and wrist pins included? A: This listing covers the piston pair only unless stated otherwise in the title. Check your rebuild kit for rings, pins, and clips.

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