This Wossner 68.00mm (+0.60 oversize) forged piston kit is designed for Kawasaki KX250 models from 1987 to 1989. With a precision-engineered elliptical profile and forged construction, it offers improved structural integrity and thermal management under high-performance conditions. Made in Germany, this piston is optimised for two-stroke engines, ensuring efficient combustion heat transfer and uniform thrust load distribution.

Features

• Forged piston construction for enhanced strength

• Elliptical design supports uniform bearing surface under thermal expansion

• Distributes thrust loads evenly to reduce stress and prevent piston collapse

• Engineered for optimal heat transfer from combustion chamber to cylinder walls

• Manufactured in Germany

Specifications

• Bore: 68.00mm

• Actual diameter: 67.94mm

• Displacement: 249 cm³

• Stroke: 70.00mm

• Clearance: 0.06mm

• Compression height: 37.00mm

• Compression ratio: 2-stroke

Cross-Reference OEM Part Numbers

• Piston Kit Part No.: 56-W556+060.WO

• Wossner Piston Kit No.: 8129D060

• Lock: CW18

• Pin: WP033

• Ring Set: RSB6800 x 2

Vehicle Fitments

• Kawasaki KX250 1987

• Kawasaki KX250 1988

• Kawasaki KX250 1989