The Wossner 8168DB piston kit is a +0.01 oversize forged piston designed for the Kawasaki KX250 from 2005 to 2009. Featuring a 66.41mm bore and 66.35mm piston diameter, this piston is engineered for high-performance two-stroke applications, offering exceptional durability and thermal management. Its elliptical profile ensures even load distribution during heat expansion, reducing stress and preventing piston failure. Manufactured in Germany, this piston meets strict standards for quality and performance.

Features

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  Forged construction for superior strength and wear resistance

  
  


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  Optimised for effective heat transfer from the combustion chamber to cylinder walls

  
  


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  Elliptical piston design distributes thrust loads evenly to reduce localised pressure

  
  


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  Precision-manufactured in Germany for high reliability

  
  

Specifications

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  Bore: 66.41 mm

  
  


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  Piston Diameter: 66.35 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

  
  


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  Rod Part Number: P2022

  
  

Cross-Reference OEM Part Numbers

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  13001-0058

  
  


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  13002-1098

  
  


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  13008-0013

  
  


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  92033-1336

  
  

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

  
  


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  2009 Kawasaki KX250