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Southern Pacific Diesel Power during 1940-50

Last upd. Feb-2012

General Motors Electro-Motive-Division
NW2 Switcher
NW2 # 1013 (Kato)


Years Produced: 1939-1949
Number Produced: 1145
Engine Type: 12 cyl. mod.567
Horse Power: 1000
SP :50 1310–1319, 1403–1425
T&NO : 72


The EMD NW2 is a 1,000 hp (750 kW), B-B yard switcher locomotive manufactured by General Motors Electro-Motive Division of La Grange, Illinois.

The NW2 was manufactured from February, 1939 to December, 1949, and 1145 were produced – 1121 for the U.S., and 24 were exported to Canada.

Starting in late 1948 the NW2s were manufactured in EMD's Plant #3 in Cleveland, Ohio. The 1,000 hp (750 kW) was achieved by using a 12-cylinder, model 567, and later, a model 567A engine. In addition, 3 TR cow-calf paired sets, 36 TR2 cow-calf paired sets, and 2 TR3 cow-calf-calf sets were produced. The TR sets were built prior to World War II and the TR2 and TR3 sets were built postwar.

Roadname specific model features:
• Conical smoke stacks
• Distinctive striped paint scheme
• Phase 1 riveted Airtanks

NW2's distinctive twin-stack profile and short radiator creating a distinctive silhouette.
Perhaps ironic, considering its 1000 horsepower engine, the N in NW2 stood for nine hundred horsepower, with the W designating that it was a welded frame locomotive, instead of a cast frame.
The Southern Pacific introduced the NW2 to its yards along with a few other 1000 hp switchers in 1942, their first diesel switchers and a replacement for the 0-6-0 steam locomotives running their yards at the time.
Diesel switchers such as the NW2 offered low speed, high tractive effort while still exerting 30,000 pounds of tractive effort at 10 mph.

Preserved SP EMD NW2 Switchers (by John Komanesky):


On Line References :

OFF Line References ( sometimes called "Books" ) :

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Pictures on these pages are N scale models of the Southern Pacific Diesel Locomotives I have.
Prototype basic historic informations are desumed from sources listed above.
If some of you found errors or have additional informations,
please contact me via e-mail, and I will provide page update and credits.



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Last update :
February 2012

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