| 1 | KARX | General Electric Railcar Services Corp. | 1/1994; eliminated 10/1994 | | NAKINA |
| 2 | KARX | Hamilton Elevators | added 10/1980; eliminated 10/1989 | | NAKINA |
| 3 | KARX | Hamilton Elevators | added 10/80; eliminated 10/89 | | NRHS |
| 4 | KARX | General Electric Railcar Services Corp. | 1/94; eliminated 10/94 | | NRHS |
| 5 | KARX | (NATX) GENERAL ELECTRIC RAILCAR SERVICES CORP. [HAMILTON ELEVATORS] | | | PWRC |
| 6 | KARX | Hamilton Elevators | | | RSRV |