PISTON KIT HARLEY 3.546" SET/2, WOSSNER K8542D120-2 DAVIDSON, ROAD

This Wossner piston kit is built for Harley Davidson 1340 EVO Big Twin engines (80 cu. in.) with a 4.250" stroke, covering model years 1984 to 1999. With a 3.546" bore oversized by +0.044", it includes domed forged pistons that provide a 9.5:1 compression ratio, optimised for strength and thermal performance.

Features

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  Forged high-performance pistons (2 pcs), skirt-coated for friction reduction and longevity

  
  


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  Designed to maximise heat transfer from the combustion chamber to the cylinder walls

  
  


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  Elliptical design promotes even pressure distribution, preventing piston collapse under heat expansion

  
  


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  Domed piston configuration with a 9.5:1 compression ratio

  
  


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  Manufactured in Germany

  
  


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  Includes rings, clips, and pins

  
  

Specifications

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  Bore size: 3.546" (+0.044" oversize)

  
  


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  Compression ratio: 9.5:1

  
  


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  Stroke: 4.250"

  
  


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  Piston type: Forged, skirt-coated, domed

  
  


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  Quantity: 2 pistons per kit

  
  


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  Wossner Part Number: K8542D120-2

  
  


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  Alternate Part No: 56-W9957.120.WO

  
  

Vehicle Fitments

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  Harley Davidson 1340 EVO Big Twin (80 cu. in.), stroke 4.250, years 1984–1999