4707M07400 Wiseco Std Piston Kit for Yamaha Attack 1000 2004-2007 74.00mm

Wiseco Std Piston Kit for Yamaha Attack 1000

This Wiseco standard piston kit (4707M07400) is a 74.00 mm, 13:1 compression replacement piston assembly for the Yamaha Attack 1000, built to restore top-end performance after a rebuild.

Overview

This Wiseco Std Piston Kit for Yamaha Attack 1000 restores factory-displacement bore size with a 74.00 mm piston running a 13:1 compression ratio. The Wiseco Std Piston Kit suits riders and mechanics rebuilding a worn or damaged top end on 2004-2007 Attack 1000 snowmobiles. Each Wiseco Std Piston Kit is forged for strength and machined to tight tolerances for consistent cylinder sealing.

Built For Performance

• Forged aluminum construction for high strength under combustion pressure
• 74.00 mm standard bore size maintains factory displacement
• 13:1 compression ratio for strong midrange and top-end power
• Precision machined ring grooves for reliable ring seal
• Reference number 4707M07400 identifies this specific kit
• Designed as a direct-fit replacement for the original piston

Fits These Machines

• for Yamaha Attack 1000 2004
• for Yamaha Attack 1000 2005
• for Yamaha Attack 1000 2006
• for Yamaha Attack 1000 2007

On-The-Job Use

• Top-end rebuilds after piston scoring or seizure
• Cylinder refresh during routine engine service
• Restoring compression on high-mileage 1000 cc four-stroke engines
• Performance rebuilds requiring a standard bore forged piston

Specs At A Glance

Good To Know

Q: Does this kit include rings and pin? A: Wiseco standard piston kits typically ship as a complete assembly with piston, rings, wrist pin, and clips, though you should confirm contents with the listing before ordering.

Q: Can I install this without machining the cylinder? A: This is a standard bore piston, so it fits a cylinder that is still within factory bore spec and does not require overboring.

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