ProX Exhaust Valve and Spring Kit 09262725 for Yamaha YZ450F 2014–2015

Name: ProX Exhaust Valve and Spring Kit 09262725 for Yamaha YZ450F 2014–2015
Brand: PROX
SKU: 09262725
Price: 119.62 GBP
Availability: InStock

Fits Yamaha YZ 450 F

RRP £149.52 Save 20%

£119.62

incl. VAT

In stock — delivered in 6–10 working days

Dispatched in 2–3 working days · delivered in 6–10.

Part #: 09262725

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§ 02 / About this part

What it is

ProX exhaust valve and spring kit to fit the Yamaha YZ450F, model years 2014–2015.

This kit replaces your top-end exhaust 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: 09262725
Category: Top End
Weight: 0.14 kg
VAT: 20%

// Fitment

Will it fit your bike?

Fits 1 model · 1 year-band

Yamaha YZ 450 F 2014–2015

* 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

Iron Offroad is the off-road sibling of Iron City and Iron Stable — a UK shop for motocross, enduro, and trail-bike hard parts. Every fitment lives on the site, listed against KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is the data: fully enriched fitment so you find the right part for your bike quickly and get it fitted accurately. Brands you'd find on a paddock workbench — pads, sprockets, plastics, fork seals, cables, gaskets, bars, the things that actually wear out. Road-bike kit, scooter parts, and quad gear sit elsewhere; dirt and e-moto only. We operate from our storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. The business has a rich motorcycle history across multiple moto brands — the photos show where we came from — and recently pivoted into hard parts and online retail.