4797M09500 Wiseco Std Piston Kit for Yamaha TT600 XT600 1984-2004 95.00 mm

Wiseco Standard Piston Kit for Yamaha TT600 & XT600

This Wiseco standard piston kit, part number 4797M09500 with a 95.00 mm bore, is a forged replacement piston assembly for Yamaha TT600 and XT600 models spanning 1984 through 2004.

Overview

This Wiseco standard piston kit for Yamaha TT600 and XT600 thumpers restores top-end compression with a forged piston built to handle demanding single-cylinder service. The 95.00 mm standard bore sizing lets the kit drop into a stock cylinder without overboring, making it a direct replacement option for worn or damaged pistons. Riders and shops rebuilding a 600cc Yamaha engine will find this piston kit suited to both trail and dual-sport use.

Built For Performance

• Forged piston construction delivers strength under high-compression single-cylinder loads
• Standard 95.00 mm bore size for stock cylinder fitment without overboring
• Wiseco part number 4797M09500 for precise model and year matching
• Designed for the Yamaha TT600 and XT600 600cc engine family
• Kit format supplies the piston for a complete top-end rebuild

Fits These Machines

• for Yamaha TT600, 1984 to 2004
• for Yamaha XT600, 1984 to 2004

On-The-Job Use

• Top-end rebuilds on worn or low-compression 600cc engines
• Trail and enduro riding where durability under load matters
• Dual-sport use that mixes road miles with off-road punishment
• Shop rebuilds requiring a stock bore replacement piston

Specs At A Glance

Good To Know

Q: Does this kit require boring the cylinder? A: No, the 95.00 mm size is a standard bore piston, so it fits a stock cylinder in good condition. Always measure cylinder wear before installation.

Q: Is this an original Yamaha part? A: This is a Wiseco piston kit made for Yamaha TT600 and XT600 engines, not a factory Yamaha part. Confirm your model year 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.