If you wrench on URAL military-spec 6x6 trucks, the flange 375-1802079 (Russian: фланец) needs no introduction. It is the front flange of the transfer case — the coupling point where the transfer-case output shaft hands torque over to the driveline. At 2.9 kg it looks like a simple steel disc, but a worn or cracked flange means driveline play, vibration and eventually a stranded truck. Here is what it does, what it fits, and how to identify the right one.
What this flange does
The flange 375-1802079 bolts to the transfer-case output shaft and provides the mating face for the prop-shaft yoke. Every bit of torque going to the axles passes through this joint. Because URAL trucks are built for off-road and military duty, that joint sees shock loads that on-highway trucks never experience — which is why flange splines and bolt-hole faces are regular inspection items on these machines.
Notably, the same flange appears in 24 assembly diagrams across the URAL catalogue — it shows up not only in the transfer case itself, but also in final-drive and auxiliary-gearbox drawings, which makes it one of those small parts with an outsized ordering frequency.
Specifications
| Property | Value |
|---|---|
| Part number | 375-1802079 (also written 3751802079) |
| Name | Flange / фланец |
| Brand | URAL |
| Group | Transfer case |
| Weight | 2.9 kg |
| Outer diameter | 180 mm |
| Inner diameter | 52 mm |
| Assembly diagrams | Appears on 24 drawings |
Which trucks does it fit?
Four URAL models, covering the classic and the modern line:
- Ural-375 — the legendary 6x6 military truck, produced for decades and still everywhere
- Ural-4320 — the diesel successor, one of the most widely used 6x6 trucks in the world
- Ural-5323 — heavy 8x8 off-road truck
- Ural-5557 — 6x6 chassis for special bodies
The 375/4320 family alone guarantees steady demand: these trucks are the backbone of forestry, oil & gas, and military logistics fleets across Russia, Central Asia and beyond.
How to identify the right flange
- Match the catalogue number 375-1802079 against your parts book or the old flange.
- Check the two key dimensions: 180 mm outer / 52 mm inner diameter, 2.9 kg.
- Inspect the spline condition on the old part — if the shaft splines are also worn, plan the repair accordingly.
- When in doubt, send the number plus a photo of the old flange, or your truck model, to the supplier before ordering a batch.
Where to look it up
Full specifications, all 24 assembly diagrams with position numbers, and the complete fitment list are on the part page:
375-1802079 Flange — 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 before ordering. Wholesale inquiries go straight from the part page — mixed pallets across part numbers welcome, export paperwork included, shipping by sea, rail, road or air.
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