The E7 was a 2,000-horsepower (1,500 kW), A1A-A1A passenger train locomotive built by General Motors' Electro-Motive Division of La Grange, Illinois.

(Circa 1953 one more E7A was built by the Los Angeles General Shops of the Southern Pacific by rebuilding an E2A.)

Each engine drove its own electrical generator to power the two traction motors on one truck.

A Gulf, Mobile and Ohio Railroad E7A, #103-A, appears at the start and end of the 1967 film In The Heat of the Night.

A Southern Pacific E7A, #6001, is on the point of a train that figures prominently in "The Hitch-Hiker", a popular 1960 episode of the anthology television series, The Twilight Zone, starring Inger Stevens.