The Wossner 8168DA piston kit is a standard-size forged piston specifically engineered for the Kawasaki KX250 from 2005 to 2008. With a 66.40mm bore and 66.34mm piston diameter, this piston is designed for maximum strength and optimal heat transfer in two-stroke engines. Its elliptical design provides a uniform bearing surface under thermal expansion, reducing localised stress and preventing piston collapse. Manufactured in Germany, this piston ensures long-lasting, reliable performance.

Features

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  Forged construction delivers superior strength and durability

  
  


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  Designed for efficient heat transfer from combustion chamber to cylinder wall

  
  


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  Elliptical piston shape ensures uniform expansion and balanced load distribution

  
  


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  Precision-manufactured in Germany

  
  

Specifications

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  Bore: 66.40 mm

  
  


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  Piston Diameter: 66.34 mm

  
  


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  Display Displacement: 249 cm³

  
  


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  Stroke: 72.00 mm

  
  


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  Piston Clearance: 0.06 mm

  
  


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  Compression Height: 37.00 mm

  
  


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  Compression Ratio (Wossner and OEM): 2-stroke

  
  


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  Lock Part Number: CW18

  
  


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  Pin Part Number: WP033

  
  


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  Ring Set Part Number: RSB6640 x 2

  
  

Cross-Reference OEM Part Numbers

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  13001-0058

  
  


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  09104860

  
  


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  843M06640

  
  

Vehicle Fitments

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  2005 Kawasaki KX250

  
  


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  2006 Kawasaki KX250

  
  


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  2007 Kawasaki KX250

  
  


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  2008 Kawasaki KX250