EMD SW7

The EMD SW7 was a diesel switcher locomotive built by General Motors Electro-Motive Division between October 1949 and January 1951. It was powered by a 1,200 horsepower (895 kW)12-567A engine. The SW7 replaced the earlier 1,000 horsepower NW2 switcher in EMD's catalog. A total of 489 SW7 locomotives were produced. The majority of the SW7s were built by EMD Plant #3 in Cleveland, Ohio. In addition, 30 TR4 cow–calf paired sets were produced.

SW7 production was discontinued in 1951 in favor of the new SW9.

• Media related to EMD SW7 locomotives at Wikimedia Commons

• List of GM-EMD locomotives

• * Kristopans, Andre J. http://utahrails.net/ajkristopans/SWITCHERS201Aand567.php Retrieved October 7, 2014.This is a compilation of EMD Product Reference Data^{[unreliable source?]}
• General Motors Electro-Motive Division Service Department "Locomotive Reference Data" published January 1, 1959, 286 pages.