PROX CRANKSHAFT BEARING AND SEAL KIT

§ 01 / Part

09240347 CRANKSHAFT BEARING AND SEAL KIT

Fits 3 bikes
RRP £136.60 Save 20%
£109.28

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09240347

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PROX

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§ 02 / About this part

What it is

The PROX CRANKSHAFT BEARING AND SEAL KIT, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

These kits provide the essential components for a bottom-end rebuild. The main bearings support your crankshaft within the engine cases. The seals maintain primary compression and prevent oil migration. Over time, bearings develop play or begin to rumble. Worn seals cause air leaks, leading to lean-running and potential seizures. This kit matches OEM specifications for a precise fit on your bike. When installing, heat your cases and freeze the bearings to ensure they seat correctly. Check the seal orientation before final assembly to avoid workshop errors. Essential for maintaining engine tolerances during high-hour service intervals.

§ 03 / Specs

The numbers

Brand
PROX
Part number
09240347
Weight
0.78 kg
VAT
20%

// Fitment

Will it fit your bike?

Fits 3 models · 4 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.
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Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Collection from Leeds by arrangement
Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Collection from Leeds by arrangement