GP9 Diesel Locomotive

Prototype Information

EMD designed the GP9 as an improved version of the GP7, with an increase in power from 1,500 hp to 1,750 hp, and a change in prime mover to the latest version of the 567 engine, the 567C. Externally, the GP9 strongly resembled its predecessor. Most were built with high short hoods, but the Southern Pacific ordered a number with low short hoods for improved crew visibility.

EMD built GP9s at its LaGrange, Illinois facility until 1959, when American production was ended in favor of the GP18. GMD production in Canada continued until August 1963, when the final GP9 was produced.

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