| Order # 72640, SD40-2 |
 | ||||||
| Serial # | Built Date | Type | Road No. | Road No. | Road No. | Road No. | Road No. | Road No. |
| 72640-1 | .73 | SD40-2 | MILW 171 | SOO 6381 | EMDX 6381 | WE 6381 | . | . |
| 72640-2 | .73 | SD40-2 | MILW 172 | EMDX 6345 | . | . | . | . |
| 72640-3 | .73 | SD40-2 | MILW 173 | EMDX 6346 | GSWR 4001 | . | . | . |
| 72640-4 | .73 | SD40-2 | MILW 174 | EMDX 6347 | . | . | . | . |
| 72640-5 | .73 | SD40-2 | MILW 175 | EMDX 6348 | . | . | . | . |
| 72640-6 | .73 | SD40-2 | MILW 176 | EMDX 6382 | . | . | . | . |
| 72640-7 | .73 | SD40-2 | MILW 177 | MILW 16 | SOO 6300 | EMDX 6300 | . | . |
| 72640-8 | .73 | SD40-2 | MILW 178 | MILW 17 | SOO 6301 | EMDX 6301 | . | . |
| 72640-9 | .73 | SD40-2 | MILW 179 | MILW 18 | SOO 6302 | EMDX 6302 | . | . |
| 72640-10 | .73 | SD40-2 | MILW 180 | MILW 19 | SOO 6303 | EMDX 6303 | . | . |
| 72640-11 | 07.73 | SD40-2 | MILW 181 | MILW 20 | SOO 6304 | EMDX 6304 | . | . |
