This Wossner forged piston kit K8733DA-4 features a standard 81.00mm bore and is specifically designed for SUZUKI HAYABUSA GSX R 1300 models from 2008 to 2016. Supplied as a set of four pistons from the high-compression 3-ring Pro Series, this kit is tailored for serious performance applications. Manufactured in Germany, it delivers reliable operation under extreme conditions with a reduced compression ratio suitable for turbocharging or high-power setups.

Features

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  Forged 3-ring piston design for enhanced performance and durability

  
  


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  Optimised for superior heat dissipation from combustion chamber to cylinder wall

  
  


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  Elliptical shape provides uniform expansion and even thrust load distribution

  
  


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  Minimises risk of localised pressure points and piston collapse

  
  


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  Manufactured in Germany

  
  

Specifications

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  Bore: 81.00mm (STD)

  
  


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  Piston code: Wossner K8733DA-4

  
  


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  Clip part number: CW18

  
  


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  Piston pin: WP054

  
  


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  Ring set: RIK81.00A

  
  


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  Displacement options: 1340 / 1406 / 1440 / 1474 cm³

  
  


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  Stroke: 63.00 mm

  
  


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  Clearance: 0.07 mm

  
  


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  Wossner compression ratio: 9.00:1

  
  


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  OEM compression ratio: 11.00:1

  
  


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  Dome volume: -17.80 cm³

  
  


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  Compression height: 24.00 mm

  
  

Cross-Reference OEM Part Numbers

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  Part No. 56-W9895.000.WO

  
  

Vehicle Fitments

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  SUZUKI HAYABUSA GSX R 1300 2008–2016