Transmission Manufacturer
The manufacturer of the transmission as expressed as a three digit manufacturer code
| Code | Description |
| ALA | Allison |
| ASA | Aisin Seiki |
| BEA | Bering |
| BWR | Borgwarner |
| CYA | Chrysler |
| DEA | Detroit |
| DOA | Dodge |
| DSA | Dana Spicer |
| EAA | Eaton Fuller |
| FCA | Fiat Chrysler/Stellantis |
| FOA | Ford |
| GMA | General Motors |
| HIA | Hino |
| IHA | International |
| ISA | Isuzu |
| MCA | Mack |
| MSA | Mercedes |
| MTA | Meritor |
| MXA | Mitsubishi |
| NIA | Nissan |
| OTA | Other |
| PAA | Paccar |
| ROA | Rockwell |
| UDA | UD Trucks |
| VOA | Volvo |
| WKA | Workhorse |
| ZFA | Zahnrad |
| ZFF | ZF Friedrichshafen |
