This Wossner forged piston kit with a 66.42mm bore is a +0.02mm oversized option designed for Kawasaki KX250 models from 2002 to 2004. Precision-engineered for enhanced strength and optimal performance, it features advanced thermal management and load distribution characteristics. Manufactured in Germany, this piston kit ensures durability under extreme operating conditions and is ideal for performance rebuilds.

Features

• 
  

  Forged for superior strength and high durability

  
  


• 
  

  Optimised combustion heat transfer to cylinder walls

  
  


• 
  

  Elliptical design enhances bearing surface consistency and prevents localised pressure

  
  


• 
  

  Made in Germany

  
  

Specifications

• 
  

  Bore: 66.42mm

  
  


• 
  

  Actual Bore: 66.36mm

  
  


• 
  

  Engine Displacement: 249 cm³

  
  


• 
  

  Stroke: 72.00mm

  
  


• 
  

  Clearance: 0.06mm

  
  


• 
  

  Compression Ratio: 2-stroke (Wossner and OEM)

  
  


• 
  

  Compression Height: 37.00mm

  
  


• 
  

  Lock Part Number: CW18

  
  


• 
  

  Pin Part Number: WP033

  
  


• 
  

  Ring Set Part Number: RSB6640 x 2

  
  


• 
  

  Rod Part Number: P2022

  
  

Vehicle Fitments

• 
  

  2002 Kawasaki KX250

  
  


• 
  

  2003 Kawasaki KX250

  
  


• 
  

  2004 Kawasaki KX250