This Wossner piston kit features a 48.5mm bore with a 48.46mm actual piston diameter, marked as a +0.01mm oversize version. Engineered for high-performance two-stroke engines, it combines forged strength and advanced thermal management. The elliptical piston profile enhances load distribution, helping to prevent piston failure under high operating temperatures. Manufactured in Germany to exacting standards.

Features

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  Forged piston design for increased strength and durability

  
  


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  Maximised heat transfer from combustion chamber to cylinder wall

  
  


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  Elliptical shape reduces localised pressure and improves load distribution

  
  


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  Designed to resist piston collapse during thermal expansion

  
  


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  Precision-engineered in Germany

  
  

Specifications

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  Bore: 48.5mm

  
  


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  Piston Diameter: 48.46mm

  
  


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  Compression Ratio: 2-stroke

  
  


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  OEM Compression Ratio: 2-stroke

  
  


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  Dome Volume: Not specified

  
  


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  Compression Height: 26.00mm

  
  


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  Clearance: 0.05mm

  
  


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  Displacement: 85 cm³

  
  


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  Stroke: 45.80mm

  
  

Cross-Reference OEM Part Numbers

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  13001-0006

  
  


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  09104826

  
  


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  879M04850

  
  

Vehicle Fitments

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  Kawasaki KX85 2001–2020

  
  

Additional Components

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  Part Number: 56-W782.B.WO

  
  


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  Lock Part Number: CW14

  
  


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  Pin Part Number: WP058

  
  


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  Ring Set Part Number: RSB4850

  
  


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  Rod Part Number: P2005