2284M06800 Wiseco Piston Kit 68.00mm Std for Yamaha GP440 1976-1977

Piston Kit for Yamaha GP440

This Wiseco piston kit with a standard 68.00 mm bore size, cross-referencing part 2284M06800, is a replacement top-end component that restores compression and power to your snowmobile engine.

Overview

This Wiseco piston kit is a standard bore replacement built for the Yamaha GP440 engine, giving worn cylinders a fresh top end without boring. The 68.00 mm piston kit, part 2284M06800, restores proper combustion and compression so your snowmobile runs strong again. It suits riders and mechanics rebuilding a 1976 to 1977 GP440 engine who want a dependable forged piston kit.

Built For Performance

• Forged piston construction for strength under high heat and load
• 68.00 mm standard bore for stock cylinders
• Wiseco part 2284M06800 matched to the Yamaha GP440 engine
• Kit includes piston, rings, wrist pin, and circlips for a complete top-end refresh
• Precision machined for consistent fit and ring seal

Fits These Machines

• for Yamaha GP440 1976
• for Yamaha GP440 1977

On-The-Job Use

• Top-end rebuilds on stock bore cylinders
• Refreshing compression on high-mileage snowmobile engines
• Replacing a worn or damaged piston without boring
• Seasonal maintenance before winter riding

Specs At A Glance

Good To Know

Q: Will this piston kit fit my stock cylinder? A: This is a standard 68.00 mm kit, so it fits an unmodified stock cylinder in good condition. Confirm your engine's current bore before ordering.

Q: What is included in this Wiseco kit? A: The kit supplies the piston along with rings, wrist pin, and circlips needed for a top-end rebuild. Check your specific build to confirm any additional gaskets or bearings you may need.

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