This Wossner forged piston kit features a 95mm bore (actual 94.95mm) and is designed for use in select Husaberg, KTM, and Husqvarna 450cc 4-stroke engines. It offers enhanced structural integrity, optimised combustion efficiency, and precise heat management, making it suitable for demanding off-road conditions.

Features

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  Forged construction ensures superior strength and heat resistance

  
  


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  Elliptical design provides uniform surface contact during expansion

  
  


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  Manufactured in Germany for durability in off-road applications

  
  

Specifications

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  Bore Size: 95.00mm (actual 94.95mm)

  
  


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  Stroke: 63.40 mm

  
  


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  Clearance: 0.05 mm

  
  


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  Wossner Compression Ratio: OEM

  
  


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  OEM Compression Ratio: 11.80:1

  
  


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  Dome Volume: -1.60 cm³

  
  


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  Compression Height: 22.80 mm

  
  


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  Lock Part Number: CW19

  
  


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  Pin Part Number: WP037

  
  


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  Ring Set Part Number: 950ADS-2

  
  

Cross-Reference OEM Part Numbers

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  78130007100

  
  


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  40091M09500

  
  


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  78030007300

  
  


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  78130007000

  
  

Vehicle Fitments

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  Husaberg FE450 2014

  
  


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  Husqvarna FE450 2014

  
  


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  KTM EXC450 2012–2013 4-stroke

  
  


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  KTM EXC450 2014–2016 4-stroke

  
  


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  KTM EXC-F450 2017–2020 4-stroke

  
  


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  KTM XC-W450 2012–2013 4-stroke