EMDX 434A
| to UP 3040 |
SD40X
| 29873 | 2 | 164111 |
EMDX 434B
| SD40 Prototype |
SD40X
| 29874 | 1 | 264963 |
EMDX 434C
| to UP 3042, to NRE in 1999 |
SD40X
| 29875 | 3 | 140698 |
EMDX 434D
| to UP 3043 |
SD40X
| 29876 | 6 | 141556 |
EMDX 434E
| to UP 3044 |
SD40X
| 30499 | 3 | 167513 |
EMDX 434F
| to UP 3045 |
SD40X
| 30500 | 4 | 167514 |
EMDX 434G
| Sold to UP, to WC, to WLE |
SD40X
| 30501 | 1 | 263371 |
EMDX 434H
| |
SD40X
| 30502 | 1 | 263372 |
KCS 700
| SD50 Prototype |
SD40X
| 786285-1 | 37 | 25269 |
KCS 701
| 08/1978, 700-701 |
SD40X
| 786285-2 | 20 | 21026 |
KCS 702
| SD50 Prototype |
SD40X
| 786286-1 | 19 | 14104 |
KCS 703
| |
SD40X
| 786286-2 | 18 | 20045 |
PLMX 3041
| ex-EMDX |
SD40X
| 29874 | 16 | 82718 |
PRSX 4001
| ex-KCS 703 |
SD40X
| 786286-2 | 9 | 91131 |
UP 3040
| 645 prototype ex EMD 434A |
SD40X
| 29873 | 4 | 250344 |
UP 3041
| ex-EMDX 434B |
SD40X
| 29874 | 4 | 184737 |
UP 3042
| ex-EMDX 434C |
SD40X
| 29875 | 4 | 63171 |
UP 3043
| Prototypes built on Sd35 frame |
SD40X
| 29876 | 1 | 225151 |
UP 3044
| |
SD40X
| 30499 | 3 | 49485 |
UP 3045
| ex-EMD 434F |
SD40X
| 30500 | 2 | 151009 |
UP 3046
| ex-EMD 434G. Sold to WC, to WLE |
SD40X
| 30501 | 7 | 151008 |
UP 3047
| ex-EMDX 434H |
SD40X
| 30502 | 1 | 249654 |
WLE 3046
| |
SD40X
| | 2 | 255605 |