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Allison Transmission

Allison Off-Highway Transmissions

A complete line of Allison off highway transmission and parts. From the older units to the newer units, we have the products in stock to help reduce your companies downtime and maintenance costs.
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CRT 3000/5000, CT/CLT 3000, CLT/CLBT 4000, CLT/CLBT 700, CLT/CLBT 5- 6000, M/H 5600-6600, DP 8000, CLBT 9000, TT/TRT 2000-3000-4000

Allison Transmission

Allison On-Highway Transmissions

Allison industrial automatics for Refuse/Recycle, Pupil Transportation, Yard goats, Tow trucks, Box Trucks, and much more.

AT 500, MT 600, HT 700, MD 3000, HD 4000, B300/400/500, 3000 Series, 4000 Series

UST Parts Department
Parts Department

UST Parts Department

Allison, Twin Disc, Clark, Hyster, ZF, and many more! Large Stock of Genuine New Allison Parts for both the on and off highway units. Enormous inventory of used or surplus parts for all models. Knowledgeable and hands on sales staff. Also stock and sell Clark, Hyster, Twin Disc, and ZF transmissions parts.

CAT 980C

Industrial Automatics and Powershifts

UST off highway division has branched off into the servicing and rebuilding of many major brands of industrial automatics and powershift units. Twin Disc, CAT, Clark, ZF, Funk, Volvo, Terex, John Deere, Case, and Hyster to name a few. See listings for more detail.

ZF P7300
Mixer Drive

Axles, Differentials, Mixer Drives, PTOs and Clutches

Extensive knowledge of multiple products lines gives UST the ability to work on many different industrial products. From Twin Disc PTOs and Clutches to ZF Mixer Drives, U.S Transmissions has all your industrial powertrain needs covered. See listings for more.

Terex TS 14


Allison transmission are used in a variety on highway applications for transportation, delivery, and refuse industries. Off highway applications include oil, mining, logging, hauling, material handling and construction. See listings for more.

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