The Wossner Forged Piston Kit Set (K8877DA-2) with a standard 80mm bore (actual size 79.93mm) is engineered for Polaris 800 series models, including the Sportsman and Ranger RZR800. Developed in Germany for high strength and thermal efficiency, the forged pistons feature an elliptical design that promotes even thrust load distribution, minimising stress and the risk of collapse under demanding conditions.

Features

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  Forged for superior strength and long-term reliability

  
  


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  Optimised heat transfer from combustion chamber to cylinder walls

  
  


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  Elliptical design distributes load evenly and prevents piston collapse

  
  


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  Manufactured in Germany

  
  

Specifications

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  Piston Size: 80mm (STD)

  
  


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  Actual Size: 79.93mm

  
  


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  Kit Type: Piston Set (2 pistons)

  
  


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  Kit Part Number: 56-W8803+00A.WO

  
  


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  Wossner Part Number: K8877DA-2

  
  


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  Ring Set: 800XTZ-3

  
  


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  Pin: WP042

  
  


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  Pin Locks: CW18

  
  


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  Piston Type: Forged

  
  


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  Piston to Bore Clearance: Built-in per Wossner specifications

  
  

Cross-Reference OEM Part Numbers

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  2202917

  
  


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  4961M08000

  
  

Vehicle Fitments

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  Polaris Sportsman 800 (2005–2012)

  
  


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  Polaris Ranger RZR800 (2007–2015)

  
  


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  Polaris Sportsman EFI800 (2005–2011)