Wossner Forged Piston Kit 66.41mm Bore – Kawasaki KX250 (1992–2001)

This Wossner forged piston kit is designed for Kawasaki KX250 models from 1992 to 2001, featuring a bore size of 66.41 mm and a piston diameter of 66.35 mm (+0.01 mm oversize). Built for performance in 2-stroke engines, the forged piston offers superior strength and optimal heat transfer. The elliptical shape provides consistent load distribution, reducing stress and improving piston reliability under high-temperature conditions. Manufactured in Germany with precision engineering.

Features

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  Forged piston construction for durability under extreme conditions

  
  


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  Efficient combustion chamber heat transfer to cylinder walls

  
  


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  Elliptical design ensures even pressure distribution and minimises wear

  
  


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  Manufactured in Germany to exacting standards

  
  

Specifications

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  Bore Size: 66.41 mm

  
  


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  Piston Diameter: 66.35 mm

  
  


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  Engine Displacement: 249 cm³

  
  


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  Stroke: 72.00 mm

  
  


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  Clearance: 0.06 mm

  
  


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  Compression Height: 38.00 mm

  
  


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  Compression Ratio: 2-stroke (Wossner and OEM)

  
  

Cross-Reference Wossner Part Numbers

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  Piston Kit: 8026DB

  
  


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  Lock: CW18

  
  


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  Pin: WP033

  
  


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  Ring Set: RSB6640 x 2

  
  

Vehicle Fitments

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  1992–2001 Kawasaki KX250