The Wossner 8941DB piston kit is a forged performance upgrade featuring a 88.00mm standard bore with a measured diameter of 87.96mm, offering a +0.01mm sizing option. It is precision-engineered for KTM and Husqvarna 350cc models and provides exceptional strength, uniform expansion, and efficient thermal conductivity. Made in Germany, the piston design enhances durability under thermal load conditions.

Features

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  Forged construction for increased strength and reliability

  
  


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  Engineered for effective combustion heat transfer to cylinder walls

  
  


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  Elliptical shape ensures uniform bearing surface during thermal expansion

  
  


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  Minimises localised stress and prevents piston collapse

  
  


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  Includes piston, rings (880XSY), pin (WP054), and circlips (CW18)

  
  

Specifications

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  Bore: 88.00mm (STD)

  
  


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  Diameter: 87.96mm

  
  


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  Sizing: B (+0.01mm)

  
  


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  Compression Ratio: 12.5:1

  
  


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  Wossner Part Number: 8941DB

  
  


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  Kit Part Number: 56-W9950.B.WO

  
  


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  Made in Germany

  
  

Cross-Reference OEM Part Numbers

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  RINGS: 880XSY

  
  


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  PIN: WP054

  
  


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  CLIPS: CW18

  
  

Vehicle Fitments

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  KTM 350 EXC-F 2017 - 2018

  
  


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  Husqvarna FE350 2017 - 2018