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

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  Forged piston construction for enhanced strength

  
  


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  Elliptical design supports uniform bearing surface under thermal expansion

  
  


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  Distributes thrust loads evenly to reduce stress and prevent piston collapse

  
  


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  Engineered for optimal heat transfer from combustion chamber to cylinder walls

  
  


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  Manufactured in Germany

  
  

Specifications

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  Bore: 68.00mm

  
  


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  Actual diameter: 67.94mm

  
  


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  Displacement: 249 cm³

  
  


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  Stroke: 70.00mm

  
  


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  Clearance: 0.06mm

  
  


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  Compression height: 37.00mm

  
  


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  Compression ratio: 2-stroke

  
  

Cross-Reference OEM Part Numbers

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  Piston Kit Part No.: 56-W556+060.WO

  
  


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  Wossner Piston Kit No.: 8129D060

  
  


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  Lock: CW18

  
  


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  Pin: WP033

  
  


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  Ring Set: RSB6800 x 2

  
  

Vehicle Fitments

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  Kawasaki KX250 1987

  
  


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  Kawasaki KX250 1988

  
  


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  Kawasaki KX250 1989