4808M07400 Std Piston Kit for Yamaha RX Warrior 1000 2004-2007 74mm 10:1

Wiseco Std Piston Kit for Yamaha RX Warrior 1000

This Wiseco standard bore piston kit replaces the worn or damaged top end in Yamaha RX Warrior 1000 snowmobile engines, restoring compression and reliable performance at the factory 74 mm bore size with a 10:1 compression ratio. The kit carries OEM-style cross-reference number 4808M07400 for easy matching to your existing engine build.

Overview

This Wiseco piston kit for Yamaha RX Warrior 1000 models is a direct-fit top end replacement engineered for the 74 mm standard bore. It restores lost compression and helps bring your snowmobile engine back to dependable running condition. The kit is made for owners and mechanics rebuilding a worn or seized top end who want proven forged piston performance.

Built For Performance

• Forged piston construction for strength under high-compression loads
• 10:1 compression ratio matched to OEM specifications
• 74 mm standard bore size for a drop-in fit
• Designed for the 1000 cc four-stroke RX Warrior engine platform
• Includes piston, rings, wrist pin, and circlips for a complete top end refresh

Fits These Machines

• for Yamaha RX Warrior 1000 (2004-2007)

On-The-Job Use

• Top end rebuilds after piston scoring or seizure
• Restoring compression on high-mileage snowmobile engines
• Routine engine maintenance and refresh projects
• Shop and trailside rebuild service work

Specs At A Glance

Good To Know

Q: Is this a standard bore piston? A: Yes, this kit is built for the 74 mm standard bore and a 10:1 compression ratio, matching the factory RX Warrior 1000 specification. Q: What does the kit include? A: It ships as a complete top end kit with piston, rings, wrist pin, and circlips ready for installation. Confirm your bore size and engine model before ordering.

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