If you maintain URAL trucks, the Ring gear 4320X-2402120 is a part number worth knowing. This guide covers what it does, which models it fits, and what to check before ordering.
What the ring gear does
Cylindrical driven gear (ring gear) of the final drive of the Ural driving axle. It meshes with the cylindrical drive pinion 4320Х-2402110 to form the cylindrical pair of the final drive. It has 49 teeth, the pair ratio is i=7.49, and it weighs 18.8 kg.
Specifications
| Property | Value |
|---|---|
| Part number | 4320X-2402120 |
| Name | Ring gear |
| Brand | URAL |
| Group | Rear axle final drive |
| Weight | 18.8 kg |
| Number of teeth | 49 |
| Assembly diagrams | Appears on 11 drawings |
Which trucks does 4320X-2402120 fit?
- Ural-375
- Ural-4320
- Ural-5323
- Ural-5557
Before you order
- Match the full catalogue number 4320X-2402120 against your vehicle's parts book or the old part — suffixes matter.
- Gears and splined parts wear in as matched sets — mixing worn and new parts shortens the life of both.
- Check mating parts (bearings, washers, seals) at the same time; they usually share the failure.
- For wholesale orders, these parts ship most efficiently as mixed pallets combined with other items.
Where to look it up
Full specifications, fitment details and assembly-diagram positions are on the part page:
4320X-2402120 Ring gear — kamaz-parts.com
The catalogue covers 87,000+ KAMAZ, URAL, MAZ, MTZ and TATRA part numbers organized by the original OEM drawing structure (brand → model → assembly group → position table), so you can verify any number against the actual assembly drawing before ordering. Wholesale inquiries go straight from the part page — mixed pallets welcome, export paperwork included.
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