This Wossner forged piston kit is designed for high-performance use in the Kawasaki KX125 (2003 model). With a bore size of 54.01mm and actual piston diameter of 53.96mm, it delivers precision fitment, efficient heat transfer, and optimal durability for demanding two-stroke engine conditions.

Features

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  Forged construction provides superior strength over cast pistons

  
  


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  Designed for efficient combustion heat transfer to cylinder walls

  
  


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  Elliptical profile ensures uniform bearing surface under thermal expansion

  
  


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  Hard Teflon skirt coating allows for smooth operation and bore conformity

  
  

Specifications

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  Bore Size: 54.01 mm

  
  


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  Piston Diameter: 53.96 mm

  
  


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  Compression Height: 29.30 mm

  
  


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  Stroke: 54.50 mm

  
  


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  Clearance: 0.05 mm

  
  


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  Compression Ratio: 2-stroke (Wossner and OEM)

  
  


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  Displacement: 125 cm³

  
  

Cross-Reference OEM Part Numbers

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  Piston Kit: Wossner 8073DA

  
  


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  Alternate Piston Kit Reference: 56-W822.B.WO / 8073DB

  
  


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  Lock: CW15

  
  


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  Pin: WP032

  
  


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  Ring Set: RSB5400

  
  


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  Rod: P2010

  
  

Vehicle Fitments

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  Kawasaki KX125 2003