The EMD GP9 is a four-axle diesel-electric locomotive built by General Motors' Electro-Motive Division between 1954 and 1959. The GP9 succeeded the GP7 as the second model of EMD's General Purpose (GP) line, [1] incorporating a new sixteen- cylinder engine which generated 1,750 horsepower (1.30 MW). [2]

The locomotive's broad ranging capabilities allowed railroads to utilize it in a multitude of assignments; road service, switching, branch line, passenger, and even commuter. Its redundancy, coupled with EMD's impeccable reputation, made it an immediate success with more than 2,700 examples produced.

The EMD (Electro Motive Division) GP9 was a type of four-axle, 16-cylinder, 1,750hp type of diesel locomotive built by the Electro Motive Division of General Motors (GM) from 1954 to around 1963. It is the successor to the GP7; being an improvement …

^ "GGRM: Collection". www.ggrm.org. Retrieved 2021-08-10. ^ "Southern Pacific #5623". Niles Canyon Railway. Retrieved 2024-04-22. ^ "Diesel Locomotives". Lake Superior Railroad Museum. Retrieved 2022-09-27. ^ "B&O No.6607". B&O Railroad Museum. Archived from the original on 2019-09-04. Retrieved 2021-08-10. ^ "WPRM - SP 2873". www.wplives.org. Retrieved 2024-08-30. ^ "Diesel Engine No. 1685 ...

The EMD GP9 is a four-axle diesel-electric locomotive built by General Motors' Electro-Motive Division in the United States, and General Motors Diesel in Canada between January, 1954, and August, 1963.

The EMD GP9 is a four-axle diesel-electric locomotive built by General Motors' Electro-Motive Division between 1954 and 1959. The GP9 succeeded the GP7 as the second model of EMD's General Purpose (GP) line, incorporating a new sixteen-cylinder engine which generated 1,750 horsepower (1.30 MW).

ATSF GP9/GP9u Reference Roster

Canadian Pacific Railway 8205-8252 were GP9u locomotives. They were originally built by GMD as GP9 road switcher locomotives, and were substantially rebuilt by CP's Ogden Shops between 1988 and 1990.

GP9u had minor changes to carbody/cab, removal of dynamic brakes, but nothing major to engine or generator other than rebuilding. GP9u - diesel locomotive build by EMD.

The GP9 four-axle diesel locomotive was the successor to the GP7. The GP9 was first introduced in 1954, production ceased in 1959 in the US while production ended in 1963 in Canada. GP9 utilized a 567 prime mover capable of 1,750 hp. The locomotive had cab and non-cab derivatives.