Kibblewhite Intake Valve Guide – Yamaha YFZ450 / YFZ450R/X / WR450F / YZ450F

🛠️ Description
Maintain proper valve operation with the Kibblewhite C674 Bronze Intake Valve Guide. Designed as a direct OEM replacement, this guide provides the precision tolerances KPMI® is known for. Softer manganese construction makes it easy to ream and hone during installation while still offering excellent sealing performance. Ideal for rebuilds or fresh head work on high-performance Yamaha applications.

✅ What’s Included

• 1x Intake Valve Guide (C674 Bronze, 0.3957" OD)

📦 Fitment

• 2010–2023 Yamaha YFZ450R SE

• 2010–2011 Yamaha YFZ450X

• 2009–2023 Yamaha YFZ450R

• 2008–2009 Yamaha YFZ450 X 4x2

• 2004–2009 Yamaha YFZ450

• 2003–2015 Yamaha WR450F

• 2003–2009 Yamaha YZ450F

🛡️ Warranty Info
Kibblewhite valve train components are covered by a manufacturer’s limited warranty against defects in materials and workmanship. Warranty does not cover improper machining, installation, or use outside intended applications.

🔑 Key Features

• Precision-machined intake valve guide for Yamaha 450 models

• Made from C674 bronze for reliable sealing

• Softer manganese allows quick reaming and honing during install

• Exact KPMI® tolerances for proper fit

• Standard size: 0.3957" OD / 0.1768" ID

• Made in the USA