VALVE EXHAUST KX450F 09-16, KIBBLEWHITE 40-40656 KAWASAKI, 12005-0049 KXF450

This exhaust valve is a standard replacement for Kawasaki KX450F models from 2009 to 2016. Constructed from Black Diamond™ stainless steel and treated with a specialised nitriding process, it offers enhanced durability, corrosion resistance, and reduced friction. Precision-engineered using Finite Element Analysis and tested on a computerised flow bench, this valve ensures reliable performance under high-load conditions.

Features

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  Black Diamond™ stainless steel construction for high strength and wear resistance

  
  


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  Nitrided surface treatment reduces friction and improves longevity

  
  


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  Engineered using Finite Element Analysis and flow bench tested

  
  


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  Designed for use with Kibblewhite® Lightweight Valve Spring Kits

  
  

Specifications

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  Type: Exhaust

  
  


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  Material: Black Diamond™ Stainless

  
  


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  Coating: Black Nitroneg

  
  


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  Quantity: Pkg. of 1

  
  


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  Head Diameter: 31.01 mm / 1.221"

  
  


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  Stem Diameter: 5.5 mm / 0.2150"

  
  


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  Tulip: 20º

  
  


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  Overall Length: 3.030"

  
  


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  Remarks: Standard

  
  

Cross-Reference OEM Part Numbers

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  Kibblewhite 40-40656

  
  

Vehicle Fitments

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  Kawasaki KX450F 2009–2016