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

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

• Nitrided surface treatment reduces friction and improves longevity

• Engineered using Finite Element Analysis and flow bench tested

• Designed for use with Kibblewhite® Lightweight Valve Spring Kits

Specifications

• Type: Exhaust

• Material: Black Diamond™ Stainless

• Coating: Black Nitroneg

• Quantity: Pkg. of 1

• Head Diameter: 31.01 mm / 1.221"

• Stem Diameter: 5.5 mm / 0.2150"

• Tulip: 20º

• Overall Length: 3.030"

• Remarks: Standard

Cross-Reference OEM Part Numbers

• Kibblewhite 40-40656

Vehicle Fitments

• Kawasaki KX450F 2009–2016