PISTON KIT 87-89 KX250 69.00, WOSSNER 8129D160 KAWASAKI MX

This Wossner 69.00mm (+1.60 oversize) forged piston kit is designed for the Kawasaki KX250 models from 1987 to 1989. Engineered for two-stroke engines, it incorporates a forged construction and elliptical profile to enhance strength, thermal expansion management, and load distribution. Made in Germany, this piston enables effective combustion heat transfer, minimising the risk of structural failure under demanding conditions.

Features

• Forged piston for high strength and durability

• Elliptical design ensures even bearing surface under heat expansion

• Distributes thrust loads uniformly to prevent localised pressure and piston collapse

• Optimised for efficient heat transfer from combustion chamber to cylinder walls

• Manufactured in Germany

Specifications

• Bore: 69.00mm

• Actual diameter: 68.94mm

• 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+160.WO

• Wossner Piston Kit No.: 8129D160

• Lock: CW18

• Pin: WP033

• Ring Set: RSB6900 x 2

Vehicle Fitments

• Kawasaki KX250 1987

• Kawasaki KX250 1988

• Kawasaki KX250 1989