Kibblewhite Intake Valve Guide Yamaha YFZ450R/X WR450F YZ450F (2003-2023)
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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
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1x Intake Valve Guide (C674 Bronze, 0.3957" OD)
📦 Fitment
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2010–2023 Yamaha YFZ450R SE
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2010–2011 Yamaha YFZ450X
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2009–2023 Yamaha YFZ450R
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2008–2009 Yamaha YFZ450 X 4x2
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2004–2009 Yamaha YFZ450
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2003–2015 Yamaha WR450F
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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
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Precision-machined intake valve guide for Yamaha 450 models
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Made from C674 bronze for reliable sealing
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Softer manganese allows quick reaming and honing during install
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Exact KPMI® tolerances for proper fit
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Standard size: 0.3957" OD / 0.1768" ID
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Made in the USA
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
