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Electro-Motive Division SW7, SW8 and SW9
United States | 1949 | 1,739 produced
Texas Pacific Lines SW9 in November 1965 at Dallas, Texas
Texas Pacific Lines SW9 in November 1965 at Dallas, Texas
DeGolyer Library / Southern Methodist University
VariantSW7SW8SW9
General
Built1949-19511950-19541951-1953
ManufacturerElectro-Motive Division, General Motors Diesel
Axle configB-B 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length44 ft 5 in
Wheelbase30 ft
Fixed wheelbase8 ft
Service weight248,000 lbs230,000 lbs248,000 lbs
Adhesive weight248,000 lbs230,000 lbs248,000 lbs
Axle load62,000 lbs57,500 lbs62,000 lbs
Power
Power sourcediesel-electric
Top speed65 mph
Starting effort62,000 lbf57,100 lbf62,000 lbf
EngineEMD 12-567AEMD 8-567BEMD 12-567B
Engine typeV12 dieselV8 dieselV12 diesel
Fuel600 us gal (diesel)
Engine output1,200 hp (895 kW)800 hp (597 kW)1,200 hp (895 kW)
Power Plant
Boiler
Calculated Values
diesel locomotive
switcher
last changed: 09 2023
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