Description
If you’re running a Yamaha YZ250 two-stroke, piston wear directly impacts throttle response, compression, and reliability. The Wiseco 605M06850 is a forged-aluminum piston kit engineered to restore—or exceed—OEM performance with the supporting components you need for a complete rebuild. Whether you’re prepping for race season or maintaining a reliable trail bike, this kit delivers the durability and precision fit that keeps your engine competitive.
- High-Silicon Forged Aluminum
Superior strength, reduced weight - 68.50mm Bore Diameter
Optimized for YZ250 combustion - Complete Kit Included
Piston, rings, wrist pin, circlips - Enhanced Ring Sealing
Maximizes compression consistency - Lightweight Design
Faster revving, sharper response - Fits Yamaha YZ250
1988–1998 model years - Bolt-On Installation
Standard piston rebuild procedure - MPN: 605M06850
Wiseco genuine part









