| No. | Model | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|
| 602 (127) | HH-660 | CB&Q (NP) | Monroe Country Historical Society, Albia, IA | display | Alco, 03/1940 | |
| 43 | HH-660 | Buffalo Creek Flour | Western NY Railway Historical Society, Hamburg, NY | operational | Alco, 03/1940 | |
| 603 (409) | HH-660 | Relco (DL&W) | DL&W, Scranton, PA | stored | Alco, 04/1940 | To be restored as DL&W 409. |
| 125 | HH-660 | NP | Northwest Railway Museum, Snoqualmie, WA | stored | Alco, 02/1940 | |
| 1603 | HH-660 | CMStP&P | Illinois Railway Museum, Union, IL | operational | Alco, 03/1939 |