The Wossner K8248D250-3 piston kit is a +2.50mm oversize forged piston set designed for Kawasaki 750cc triple-cylinder two-stroke motorcycles produced from 1972 to 1975. Featuring a 73.50mm bore, this kit delivers reliable performance, excellent thermal efficiency, and superior durability. Manufactured in Germany, it includes three pistons and all required installation components.

Features

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  Forged high-performance pistons with PTFE-coated skirts

  
  


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  Elliptical design ensures uniform thermal expansion and load distribution

  
  


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  Engineered for effective heat transfer from combustion chamber to cylinder walls

  
  


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  Constructed from 4032 T6 alloy for precise piston-to-bore fitment

  
  


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  Includes piston pins, clips, and rings

  
  

Specifications

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  Bore size: 73.50mm (+2.50mm oversize)

  
  


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  Measured bore: 73.43mm

  
  


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  Display displacement: 747 cm³

  
  


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  Stroke: 63.00mm

  
  


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  Clearance: 0.07mm

  
  


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  Compression height: 32.00mm

  
  


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  Wossner compression ratio: 2-stroke

  
  


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  OEM compression ratio: 2-stroke

  
  


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  Quantity: 3 pistons per kit

  
  


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  Made in Germany

  
  

Cross-Reference OEM Part Numbers

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  Part No. 56-W9868.250.WO

  
  


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  Clip: CW16

  
  


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  Piston Pin: WP027

  
  


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  Ring Set: RSB7350 x 2 per piston

  
  

Vehicle Fitments

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  Kawasaki 750 Mach IV 1972–1975

  
  


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  Kawasaki H2 750 Triple Cylinder 1972–1975