EMD GP7

The EMD GP7 is a four-axle road switcher diesel-electric locomotive built by General Motors Electro-Motive Division and General Motors Diesel between October, 1949 and May 1954. Power was provided by an EMD 567B 16-cylinder engine which generated 1,500 horsepower (1,119 kW). The GP7 was offered both with and without control cabs, and those built without control cabs were called a GP7B. The GP7B locomotives were built between March and April 1953. They were the first EMD road locomotives to use a hood unit design instead of a car-body design. This proved to be more efficient than the cab unit design as the hood unit cost less, had easier and cheaper maintenance, and had slightly better vision.

Of the 2,734 GP7s built, 2,615 were for American railroads, 5 GP7B units were built for the Atchison, Topeka and Santa Fe Railway 112 were built for Canadian railroads, and 2 were built for Mexican railroads.

This was the first model in EMD's GP (General Purpose) series of locomotives, later models of which were terminated with the GP60.