| No. | Model | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|
| 1956 (601) | RSD-1 | Orange Empire (Tennessee Coal & Iron) | Southern California Railway Museum, Perris, CA | operational | Alco, 04/1941 | US Army 8009. |
| 1975 (8018) | RSD-1 | Orange Empire (US Army) | Southern California Railway Museum, Perris, CA | operational | Alco, 11/1942 |