PISTON KIT 02-04 CR250 66.40 B, WOSSNER 8066DB HONDA MX

This Wossner forged piston kit with a 66.41mm bore (+0.01mm oversize) is designed for Honda CR250R models from 2002 to 2004. Engineered for durability and precision, it incorporates a hard Teflon skirt coating to enhance fit and adapt to the cylinder bore under performance conditions. Manufactured in Germany, this piston provides optimal thermal conductivity and uniform load distribution for two-stroke engines.

Features

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  Forged for high strength and long service life

  
  


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  Designed for efficient heat transfer from combustion chamber to cylinder

  
  


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  Elliptical profile ensures even pressure distribution and reduces collapse risk

  
  


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  Hard Teflon skirt coating enhances cylinder conformity and sealing

  
  


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  Made in Germany

  
  

Specifications

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  Bore: 66.41mm

  
  


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  Actual Bore: 66.35mm

  
  


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  Engine Displacement: 249 cm³

  
  


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  Stroke: 72.00mm

  
  


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  Clearance: 0.06mm

  
  


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  Compression Ratio: 2-stroke (Wossner and OEM)

  
  


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  Compression Height: 38.00mm

  
  


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  Lock Part Number: CW18

  
  


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  Pin Part Number: WP033

  
  


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  Ring Set Part Number: RSB6640 x 2

  
  


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  Rod Part Number: P2020

  
  

Vehicle Fitments

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  2002 Honda CR250R

  
  


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  2003 Honda CR250R

  
  


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  2004 Honda CR250R