800.576.2492

Allison Parts SpecialistsWhen you need transmission parts

We want Trans Machine to be the first name you think of

CAT Oilfield TransmissionComponent Repair and Modification Services

Bringing four decades of transmission expertise to the CAT brand

We Have an Obsession with Quality

We understand that every job puts your business name and reputation at stake. You can’t afford to question whether the parts and services you are purchasing will perform as promised. And that’s our promise. Any part you receive from us will always match OEM dimensions, appearance, and durability.

Allison Transmissions & More

For more than 30 years, customers have relied upon the superior quality of the products we manufacture, as well as our exemplary customer service.

Featured Parts

The latest from Trans Machine

  • Pitot Tube
    Allison HT Series Pitot Tube
    23046479
    Details
  • Transmission Output Flange
    1020971
    Details
  • Torque Converter Driven Gear / Upper Output Section
    X229447
    Details
  • Splitter Output Shaft
    Allison 9000 Splitter Output Shaft Assembly with Isotropic Finish
    29557020
    Details
  • AT Main Housing
    AT Main Housing
    29512504
    Details
  • Clutch Housing
    Allison AT Series 4th Clutch Housing
    29506156
    Details
  • HD Damper Assembly
    Allison HD/B500 Damper Assembly
    29542526
    Details
  • Pump
    Allison 8000/9000 Series Oil Pump
    6880121
    Details
  • Pump
    Allison AT Series Oil Pump
    23018811
    Details
  • HD Turbine Hub
    Allison HD/B500 Turbine Hub - New 2021 Release / 48 Spline Teeth
    29560448
    Details