| No. | Model | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|
| 401 (756) | RS-1 | CMRR (Illinois Terminal) | Catskill Mountain Railroad, Kingston, NY | operational | Alco, 03/1950 | |
| 400 (2361) | RS-1 | CMRR (WC) | Catskill Mountain Railroad, Kingston, NY | stored | Alco, 03/1950 | |
| 407 | S-1 | CMRR (LIRR) | Catskill Mountain Railroad, Kingston, NY | operational | Alco, 06/1946 |