
§ 01 / Part
09240329 CRANKSHAFT BEARING AND SEAL KIT
incl. VAT
Usually dispatched within 3 working days.
Authorised stockist
PROX
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§ 02 / About this part
What it is
The PROX CRANKSHAFT BEARING AND SEAL KIT, bottom end. 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
- 09240329
- Category
- Bottom End
- Weight
- 0.74 kg
- VAT
- 20%
// Fitment
Will it fit your bike?
Fits 20 models · 23 year-bands
Gas Gas 2 models
Yamaha 21 models
- WR 400 F 1998–2000
- WR 426 F 2001–2002
- WR 450 F 2003–2026
- YFZ 450 2004–2009
- YFZ 450 2012–2013
- YFZ 450 BB 2006–2007
- YFZ 450 LE 2004
- YFZ 450 RSE 2009–2013
- YFZ 450 SE 2005
- YFZ 450 SE 2007
- YFZ 450 SP 2006
- YFZ 450 SP 2008
- YFZ 450 SP2 2008
- YFZ 450 SPE2 2007
- YFZ 450 X 2010–2011
- YFZ 450 XBB 2010
- YFZ 450 XSE 2011
- YZ 400 F 1998–1999
- YZ 426 F 2000–2002
- YZ 450 F 2003–2025
- YZ 450 FX 2016–2026
No matches. Try a different make or model.
* 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
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// PROX
