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Posted on Originally published at kamaz-parts.com

URAL Sliding Yoke 375-2303072: Fitment, Specs and the -Б Suffix Question

If you are stocking front-axle parts for pre-2003 URAL 6x6 trucks, you will find the sliding yoke listed twice: 375-2303072 and 375-2303072-Б (Russian: вилка раздвижная). Same name, same 2.98 kg, same role in the disc-type constant-velocity joint — so what is the difference, and which one do you order? This guide answers that, with the full fitment list for the base number.

What this yoke does

The 375-2303072 is the outer half-axle yoke of the URAL front drive axle, one half of the disc-type CV joint in the steering knuckle. Through the joint disc it mates with the inner yoke and transmits torque to the steered wheel — on a truck where the front wheels both drive and steer.

The disc-type joint is an all-steel, rebuildable design, which makes the yokes individual wear items: contact faces develop play over time, announcing themselves with clicking or knocking from the front wheel area at full steering lock.

Specifications

Property Value
Part number 375-2303072 (also written 3752303072)
Name Sliding yoke / вилка раздвижная
Brand URAL
Group Front axle — differential and axle shafts
Weight 2.98 kg
Quantity per vehicle 2 (one per steering knuckle)

Which trucks does it fit?

Five pre-2003 URAL 6x6 models:

  • Ural-375 — the classic petrol V8 military truck
  • Ural-4320 — the diesel 6x6 successor
  • Ural-43202 — variant of the 4320 family
  • Ural-4420 — 6x6 tractor unit
  • Ural-5557 — 6x6 chassis for special bodies

The "pre-2003" cutoff matters: later URAL axles use a different steering-knuckle joint design, so check the truck's year before ordering.

375-2303072 vs 375-2303072-Б: which suffix do you need?

The Cyrillic suffix -Б marks a design variant of the same yoke:

  • 375-2303072 (this part) — the base drawing number, catalogued for the five models above.
  • 375-2303072-Б — the variant, which additionally appears on Ural-4320-31 and Ural-55571 front-axle drawings.

In practice suppliers treat the two as interchangeable — same role, same weight, same joint family. But OEM parts books are strict about suffixes, so the safe procedure is:

  1. Match the exact number — with or without -Б — against your vehicle's parts book.
  2. If your truck is a 4320-31 or 55571, check the -Б variant specifically, since those drawings call it out.
  3. When the old part and the parts book disagree, send the number plus a photo of the yoke and your truck model to the supplier before ordering.

Before you order

  1. Confirm your truck is pre-2003 with the disc-type CV joint.
  2. Remember the quantity: 2 yokes per vehicle, one per side — fleet orders should count both.
  3. The yoke wears together with the joint disc and the inner mating yoke; inspect all three before deciding the order.

Where to look it up

Full specifications and the complete fitment list are on the part page:

375-2303072 Sliding yoke — kamaz-parts.com

Its sibling with a photo: 375-2303072-Б Sliding yoke.

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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