Boyesen Factory Racing Replacement Aluminium Clutch Cover 09400238 Black for Yamaha WR450F 2003–2015 YZ450F 2003–2009

Name: Boyesen Factory Racing Replacement Aluminium Clutch Cover 09400238 Black for Yamaha WR450F 2003–2015 YZ450F 2003–2009
Brand: BOYESEN
SKU: 09400238
Price: 103.97 GBP
Availability: InStock

Fits 2 bikes

RRP £125.27 Save 17%

£103.97

incl. VAT

In stock — delivered in 6–10 working days

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

Part #: 09400238

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§ 02 / About this part

What it is

Boyesen Factory Racing replacement aluminium clutch cover in black to fit Yamaha WR450F (2003–2015); Yamaha YZ450F (2003–2009).

This clutch cover seals the right side of your engine. It protects the clutch basket and maintains oil pressure. OEM covers are notoriously thin and prone to punctures from the rear brake lever or loose rocks. This cast aluminium version provides the durability needed for race conditions and hard enduro. It is machined for a perfect fit on your specific bike. Ensure the mating surface is clean before installation to prevent oil leaks. This part is a standard upgrade for any serious rebuild or race prep. It handles the heat and abrasion of technical riding better than stock magnesium components.

§ 03 / Specs

The numbers

Brand: BOYESEN
Part number: 09400238
Category: Engine
Weight: 0.38 kg
VAT: 20%

// Fitment

Will it fit your bike?

Fits 2 models · 2 year-bands

* 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.