§ 01 / Part
ProX Intake Valve and Spring Kit 09262729 for Yamaha WR450F 2016–2018 YZ450F 2014–2017 YZ450FX 2016–2020
incl. VAT
Dispatched in 2–3 working days · delivered in 6–10.
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PROX
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§ 02 / About this part
What it is
ProX intake valve and spring kit to fit the Yamaha WR450F, model years 2016–2018; Yamaha YZ450F, model years 2014–2017; and Yamaha YZ450FX, model years 2016–2020.
This kit replaces your top-end intake components. It is designed to convert your bike from titanium to steel valves. Steel valves offer longer service intervals and better durability in harsh conditions. The included heavy-duty springs are matched to the increased weight of the steel valves. This prevents valve float at high RPM. It is a direct fitment for your specific model. Always check your valve clearances after the first few heat cycles. This kit is a standard choice for riders looking to reduce maintenance frequency on modern four-stroke engines.
§ 03 / Specs
The numbers
- Brand
- PROX
- Part number
- 09262729
- Category
- Top End
- Weight
- 0.18 kg
- VAT
- 20%
// Fitment
Will it fit your bike?
Fits 3 models · 3 year-bands
Yamaha 3 models
No matches. Try a different make or model.
* Fitment data is provided as a guide. Verify compatibility against the bike's owner's manual or service handbook before ordering. Iron Offroad accepts no liability for incorrect application. Full terms and conditions apply.
§ 05 / About Iron Offroad
Iron Offroad
// Related
