EMD SD7

EMD SD7
SP 1518 at the Illinois Railway Museum
Power type Diesel-electric
Builder General Motors Electro-Motive Division (EMD)
Model SD7
Build date February 1952 – November 1953
Total produced 188
AAR wheel arr. C-C
Gauge 4 ft 8 12 in (1,435 mm)
Prime mover EMD 567B
Cylinders V16
Power output 1,500 hp (1.12 MW)
Locale United States
Disposition some still in service

An EMD SD7 is a 6-axle diesel locomotive built by General Motors Electro-Motive Division between February 1952 and November 1953. Power was provided by an EMD 567B 16-cylinder engine which generated 1,500 horsepower (1.12 MW).

188 examples of this locomotive model were built for American railroads.

This was the first model in EMD's SD (Special Duty) series of locomotives, later models of which are still being produced.

Original buyers

Owner Quantity Numbers Notes
Electro-Motive Division
2
990
to Southern Pacific 5308
991
to Baltimore and Ohio 760
Baltimore and Ohio Railroad
4
761–764
Bessemer and Lake Erie Railroad
8
451–455, 801–803
Chicago and North Western Railway
5
1660–1664
Chicago, Burlington and Quincy Railroad
37
300–324, 400–411
Chicago, Milwaukee, St. Paul and Pacific Railroad
24
2200–2223
Renumbered 500–523
Colorado and Southern Railway
10
810–819
Central of Georgia Railway
1
201
Denver and Rio Grande Western Railroad
5
5300–5304
Fort Worth and Denver Railway
11
850–860
Great Northern Railway
23
560–572
Kennecott Copper Corporation
1
903
Minneapolis and St. Louis Railway
2
852, 952
Renumbered 300–301
Nevada Northern Railway
1
401
Pennsylvania Railroad
2
8588–8589
Southern Pacific Company
42
5279–5293, 5309–5335
Union Pacific Railroad
10
775–784
Total 188

Preservation

The first SD7 built by EMD, former demonstrator 990, Southern Pacific 1518, is preserved in operational condition at the Illinois Railway Museum.

References