VALVE INTAKE YZ450F 14-16, KIBBLEWHITE 80-80872, Yamaha YZ 450 2014-2019 YZ 450FX 2016-2020 WR 450F 2016-2021

This Black Diamond™ Stainless Steel Intake Valve is designed for Yamaha® YZ™ and WR™ 450 models from 2014 to 2021. Precision-forged as a one-piece component and treated with a German nitriding process, this valve offers improved surface hardness, wear resistance, and corrosion protection. Engineered using Finite Element Analysis and validated through flow bench testing, it delivers consistent performance in demanding off-road applications.

Features

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  Manufactured from Black Diamond™ Stainless Steel

  
  


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  Nitrided surface treatment enhances wear resistance and reduces friction

  
  


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  One-piece forging for structural integrity and durability

  
  


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  Designed using Finite Element Analysis (FEA)

  
  


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  Flow-tested for optimised intake efficiency

  
  

Specifications

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  Head Diameter: 37.00mm / 1.457"

  
  


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  Stem Diameter: 5.50mm / 0.2158"

  
  


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  Tulip Angle: 20 degrees

  
  


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  Overall Length (OL): 83.31mm / 3.280"

  
  


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  Standard size

  
  

Cross-Reference OEM Part Numbers

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  Kibblewhite Part No. 80-80872

  
  

Vehicle Fitments

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  Yamaha YZ 450 2014–2019

  
  


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  Yamaha YZ 450FX 2016–2020

  
  


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  Yamaha WR 450F 2016–2021