NDC 51
| Early cast frame VO-660 upgraded to S6 standards by Alco |
VO-660M
| 62499 | 4 | 177544 |
NDC 101
| Northampton Development Center, Scrapped May of 2007 |
S6
| 81721 | 9 | 177543 |
NDC 1546
| Ex CR 9993, CR 5376, CNJ 1546 |
RS3M
| 78064 | 24 | 60656 |
NDC 2034
| Blt 8/67 as Monon 517. |
C420
| 3490-11 | 20 | 82936 |
NDC 7210
| ex LTV Mining |
RS11
| 82038 | 14 | 107325 |