The Wossner K8595D175-2 piston kit is a forged high-performance component designed for Harley Davidson Twin Cam engines. Featuring a +1.75mm oversize bore (3.817") and a domed piston design, it delivers a 10:1 compression ratio suitable for performance-oriented applications. Precision-engineered in Germany, the kit includes all required components for installation.

Features

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  Forged high-performance pistons with skirt coating

  
  


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  Elliptical design ensures consistent load distribution and controlled expansion under heat

  
  


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  Engineered for efficient heat transfer from combustion chamber to cylinder walls

  
  


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  Domed pistons with 10:1 compression ratio

  
  


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  Includes rings, clips, and pins

  
  

Specifications

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  Bore size: 3.817" (+0.069", +1.75mm)

  
  


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  Compression ratio: 10:1

  
  


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  Quantity: 2 pistons per kit

  
  


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  Made in Germany

  
  

Cross-Reference OEM Part Numbers

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  Part No. 56-W9866.175.WO

  
  


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  Ring Set Part No. 970XSY

  
  

Vehicle Fitments

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  Harley Davidson 1453cc Twin Cam 1999–2009

  
  


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  Harley Davidson 1499cc Twin Cam 1999–2009

  
  


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  Twin Cam 88 (88 cu. in.) 1999–2006