Wossner Piston Yamaha YZ250F 19 size:Piston A (Standard) Yamaha: 2 and 4 cycle

Yamaha: 2 and 4 cycle engine quads

as well as a Viton ethanol-safe fuel pump o-ring

Specifically

Outside Diameter: 143mm

Can be used without removing exhaust pipes on most bikes

Wossner Piston Yamaha YZ250F 19 size:Piston A (Standard) Yamaha: 2 and 4 cycleWossner is Germany's finest aftermarket forged piston and rod manufacturer and have over 25 years of experience in the high performance racing industry. Top European racers and FIM World Champions rely on Wossner for only the best pistons, rods and customer service. Features In house designed and manufactured; all forgings are produced in Wossner's company owned forging operation 4 stroke pistons are made using a double bridged forging design