EMD SW600
The EMD SW600 is a diesel switcher locomotive built by General Motors Electro-Motive Division between February 1954 and January 1962. It shared the same carbody design as EMD's more powerful SW900 and SW1200 models but only generated 600 horsepower, and replaced the SW1 in EMD's catalogue. Power was provided by an EMD 567C 6-cylinder engine, which generated 600 horsepower.
Original owners
15 examples of this model were built for American railroads and industrials.| Road | Quantity | Road number | Notes |
| McLouth Steel | 2 | 8–9 | |
| Northern Indiana [Public Service Company] | 1 | 4 | |
| Chicago and [North Western Railway] | 2 | 1280–1281 | |
| Detroit Edison Company | 1 | 213 | |
| Texas Company | 1 | 23 | |
| Columbus and [Southern Ohio Electric Company] | 1 | 512 | |
| Shell Oil Company | 1 | 9 | |
| Gulf Oil Company | 1 | 9 | |
| Philadelphia Electric Company | 1 | 30 | |
| Clinchfield Coal Company | 1 | 100 | |
| Marathon Southern Corporation | 1 | 1 | |
| Arizona Public [Service Company] | 1 | 1 | |
| Public [Service Company of Colorado] | 1 | 15-1 | |
| Total | 15 |