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 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.
Original buyers Railroad Quantity Road numbersArkansas and Louisiana Missouri Railway 1 11 Atlantic Coast Line Railroad 9 643–651 Central Railroad of New Jersey 4 1080–1083 Charleston and Western Carolina Railway 2 800–801 Chesapeake and Ohio Railway 26 5214–5239 Chicago and Eastern Illinois Railroad 6 126–131 Chicago and Eastern Illinois (Chicago Heights Terminal and Transfer Railroad) 2 132–133 Chicago and Illinois Western Railroad 3 101–103 Chicago, Burlington and Quincy Railroad 20 9249–9268 Chicago, Milwaukee, St. Paul and Pacific Railroad 1 1646 Clinchfield Railroad 6 350–355 Colorado and Southern Railway 1 154 Conemaugh and Black Lick Railroad 15 103–117 Cornwall Railroad 3 120–122 Detroit and Toledo Shore Line Railroad 3 116–118 Detroit Terminal Railroad 1 116 Detroit, Toledo and Ironton Railroad 5 920–924 Erie Railroad 6 428–433 Great Northern Railway 11 163–170, 11–13 Illinois Central Railroad 50 9300–9319, 9400–9429 Kansas City Southern Railway 10 1300–1309 Kansas City Southern Railway (Louisiana and Arkansas Railway) 6 1310–1315 Lakeside and Marblehead Railroad 1 12 Lehigh Valley Railroad 5 220–224 Louisiana Midland Railway 1 10 Louisville and Nashville Railroad 22 2245–2266 Maine Central Railroad 3 331–333 Missouri Pacific Railroad 5 9142–9146 Monessen Southwestern Railway 1 21 Montour Railroad 1 72 Nashville, Chattanooga and St. Louis Railway 10 24–33 New York Central Railroad 34 8851–8855, 8880–8897, 8911–8921 New York Central (Indiana Harbor Belt Railroad) 40 8835–8850, 8856–8879 New York Central (Chicago River and Indiana Railroad) 6 8898–8903 New York Central (Peoria and Eastern Railway) 7 8904–8910 New York, Chicago and St. Louis Railroad (“Nickel Plate Road”) 3 230–232 Northern Pacific Railway 8 107–114 Pennsylvania Railroad 48 8861–8868, 8871–8872, 9358–9395 Peoria and Pekin Union Railway 5 406–410 Phelps Dodge Corporation (New Cornelia Branch Mine) 1 6 Philadelphia, Bethlehem and New England Railroad 4 31–34 River Terminal Railway 2 61–62 Southern Railway (Alabama Great Southern Railroad) 5 6505–6509 Southern Railway (Cincinnati, New Orleans and Texas Pacific Railway) 14 6060–6073 Southern Railway (Georgia Southern and Florida Railway) 4 8200–8203 Southern Railway (New Orleans and North Eastern Railway) 12 6852–6863 St. Louis Southwestern Railway (“Cotton Belt”) 4 1054–1057 St. Louis-San Francisco Railway (“Frisco”) 5 300–304 Texas and Pacific Railway 4 1020–1023 Union Pacific Railroad 25 1800–1824 Union Railroad 4 571–574 Wabash Railroad 8 355–362 Weyerhaueser Timber Company 2 300–301 Woodward Iron Company 2 50–51 Youngstown and Southern Railway 2 70–71 Total 489
TR4 Railroad Quantity A units Quantity B units Road numbers A units Road numbers B units NotesAtchison, Topeka and Santa Fe Railway 2 2 2418L–2419L 2418A–2419A Belt Railway of Chicago 5 5 502A–506A 502B–506B Chesapeake and Ohio Railway 2 2 6001A–6002A 6001B–6002B Chicago, Milwaukee, St. Paul and Pacific Railroad 6 6 2001A–2006A 2001B–2006B Total 15 15
External links
See also List of GM-EMD locomotives
References
* Kristopans, Andre J. http://utahrails.net/ajkristopans/SWITCHERS201Aand567.php Retrieved October 7, 2014.This is a compilation of EMD Product Reference Data General Motors Electro-Motive Division Service Department "Locomotive Reference Data" published January 1, 1959, 286 pages.