KIBBLEWHITE
Valve and Spring Kit - 0.380" Lift - Yamaha YFZ450/R/X | WR450F | YZ450F '03-'09
Part # 0926-2739
$303.29
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Confirmed fit for 54 motorcycle configurations across Yamaha, model years 2003–2025.
| Years | Make & Model |
|---|---|
| 2009, 2012-2020 | Yamaha YFZ 450 X 4x2 |
| 2009-2020, 2023-2025 | Yamaha YFZ450R |
| 2010-2011 | Yamaha YFZ450X |
| 2004-2009 | Yamaha YFZ450 |
| 2003-2016 | Yamaha WR450F |
| 2003-2009 | Yamaha YZ450F |
- Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves
- Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts
- Includes forged one-piece stainless steel intake valves, wound chrome-silicon heat-treated wire valve springs, ultra-light titanium retainers and hardened steel bases
- Components are created using Finite Element Analysis (F.E.A.) software, as well as proprietary camshaft analysis and spring design software
- Specifically designed and engineered for each application
- Made in the USA
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Overview
The KIBBLEWHITE 0926-2739: Valve and Spring Kit - 0.380" Lift - Yamaha YFZ450/R/X | WR450F | YZ450F '03-'09. Confirmed fit for 54 motorcycle configurations across Yamaha, model years 2003–2025. Ships from Greasemoto — a veteran-owned motorcycle parts shop in Fort Worth, TX — with free U.S. shipping on orders over $100.
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