An EMD SW1200 is a four-axle diesel switcher locomotive built by General Motors Electro-Motive Division between January 1954 and May 1966.[1] Power is provided by an EMD 567C 12-cylinder engine, which generates 1,200 horsepower (890 kW). Additional SW1200 production was completed by General Motors Diesel in Ontario, Canada, between September 1955 and June 1964.
737 examples of this locomotive model were built for U.S. railroads, 287 were built for Canadian railroads,[1] four were built for Brazilian railroads, 25 were built for a Chilean industrial firm, and three were built for the Panama Canal Railway.