ProX Connecting Rod Kit 09230150 for Yamaha WR450F 2003–2006 YZ450F 2003–2005

Name: ProX Connecting Rod Kit 09230150 for Yamaha WR450F 2003–2006 YZ450F 2003–2005
Brand: PROX
SKU: 09230150
Price: 162.82 GBP
Availability: InStock

Fits 2 bikes

RRP £203.53 Save 20%

£162.82

incl. VAT

In stock — delivered in 6–10 working days

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

Part #: 09230150

Authorised stockist

PROX

14-day returns

Easy & hassle-free

Secure checkout

256-bit encryption

§ 02 / About this part

What it is

ProX connecting rod kit to fit the Yamaha WR450F, model years 2003–2006, and Yamaha YZ450F, model years 2003–2005.

This kit manages the critical connection in your bottom-end. It links the piston to the crankshaft, converting every stroke into drive. Big-end bearings eventually develop play, or the rod fatigues from high-RPM stress. Replacing the rod is standard practice during a full rebuild to avoid catastrophic failure. Each kit includes the rod, big-end pin, bearing, and thrust washers. These components match OEM specifications for a direct fit. You will need a hydraulic press and truing stand for installation. Precision is vital. Ensure your crank webs are perfectly aligned after assembly to prevent vibration through the bike.

§ 03 / Specs

The numbers

Brand: PROX
Part number: 09230150
Category: Bottom End
Weight: 0.67 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.