| No. | Model | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|
| 107 | RSD39 | D&SNGR (WP&Y) | Durango & Silverton Narrow Gauge Railroad, Durango, CO | operational | MLW, 05/1969 | |
| 106 | RSD39 | WP&Y | White Pass & Yukon Railway, Skagway, AK | operational | MLW, 05/1969 | |
| 104 | RSD39 | WP&Y | White Pass & Yukon Railway, Skagway, AK | operational | MLW, 05/1969 | |
| 103 | RSD39 | WP&Y | White Pass & Yukon Railway, Skagway, AK | operational | MLW, 05/1969 |