4596M09500 Wiseco Std Piston Kit for Yamaha XT600 TT600 1984-2004 95mm 11.5:1

Wiseco Standard Piston Kit for Yamaha XT600 & TT600

This Wiseco standard piston kit, carrying OEM cross-reference 4596M09500, is a 95mm forged piston assembly at 11.5:1 compression built to refresh the top end of compatible Yamaha XT600 and TT600 models.

Overview

This standard piston kit gives the Yamaha XT600 and TT600 engine a rebuild-ready replacement for a worn or scored 95mm piston. Each piston kit is designed to restore compression and ring seal at the original bore size while handling the loads of a big single. Riders and mechanics rebuilding a tired Yamaha XT600 or TT600 top end will find this piston kit a direct-fit option at 11.5:1 compression.

Built For Performance

• Forged piston construction for strength under high single-cylinder combustion loads
• 95mm bore size matches the standard cylinder diameter
• 11.5:1 compression ratio for strong mid-range and top-end response
• Kit includes piston, rings, wrist pin, and circlips for a complete top-end refresh
• Wiseco cross-reference 4596M09500 for straightforward parts identification

Fits These Machines

• for Yamaha XT600
• for Yamaha TT600

On-The-Job Use

• Top-end rebuilds after piston scoring or ring wear
• Restoring lost compression on high-mileage singles
• Trail and dual-sport engine servicing
• Preventive refresh before a long riding season

Specs At A Glance

Good To Know

Q: Is this piston kit a standard bore size? A: Yes, it is a 95mm standard bore piston kit, so it fits a cylinder that has not been overbored.

Q: What does the 11.5:1 ratio mean for my engine? A: It is a higher compression ratio that can improve power, though premium fuel may be needed depending on your setup.

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