PROX CRANKSHAFT BEARING

§ 01 / Part

ProX Crankshaft Bearing 09240553 for Kawasaki JS300 JS300SX KX125D KX125E Suzuki RM250 TM Racing EN125 EN144 MX125 MX144 Yamaha TT600 XT600

Fits 11 bikes
RRP £15.55 Save 20%
£12.44

incl. VAT

In stock — delivered in 6–10 working days

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

Part #: 09240553

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§ 02 / About this part

What it is

ProX crankshaft bearing to fit Kawasaki JS300 (1986–1988); Kawasaki JS300SX (1987–1991); Kawasaki KX125D (1985); Kawasaki KX125E (1986–1987); Suzuki RM250 (1982–1993); TM Racing EN125 (2013–2014); TM Racing EN144 (2013–2014); TM Racing MX125 (2013–2014); TM Racing MX144 (2013–2014); Yamaha TT600 (1984–1991); Yamaha XT600 (1984–1990).

This bearing supports the crankshaft within the engine cases. It is a critical component for your bottom-end, handling high rotational speeds and combustion loads. Over time, heat and debris cause pitting on the races, leading to audible noise and crank play. Replace these bearings during any major engine service or when splitting the cases. This part is designed to meet OEM specifications for fitment and load ratings. Ensure the cases are heated correctly for a smooth installation into the bore. Proper seating is vital to prevent premature wear and maintain engine balance.

§ 03 / Specs

The numbers

Brand
PROX
Part number
09240553
Category
Bottom End
Weight
0.23 kg
VAT
20%

// Fitment

Will it fit your bike?

Fits 11 models · 11 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 ✦