This Wossner forged piston kit is designed for the Kawasaki KX125 (2003), featuring a 54.02mm bore and a 53.97mm piston diameter. Precision-engineered for high performance and durability, this piston provides efficient combustion heat transfer and consistent bearing surface contact during thermal expansion.

Features

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  Forged piston construction ensures high strength and durability

  
  


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  Optimised design enhances heat transfer from combustion chamber to cylinder walls

  
  


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  Elliptical shape delivers uniform bearing surface under expansion conditions

  
  


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  Teflon-coated skirt enhances conformity to bore and reduces friction

  
  

Specifications

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  Bore Size: 54.02 mm

  
  


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  Piston Diameter: 53.97 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.C.WO / 8073DC

  
  


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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