The reference for locomotives and railcars
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
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 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
Calculated Values
diesel locomotive
last changed: 09 2023

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