EMD SD40

This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (June 2008) (Learn how and when to remove this message)

EMD SD40
Southern Pacific 7342, an SD40R, in 1980
Type and origin Power type Diesel-electric Builder GM Electro-Motive Division (EMD) General Motors Diesel (GMD) Model SD40 Build date January 1966 – August 1972 Total produced 1,268
Specifications Configuration: ​  • AAR C-C Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge 5 ft 3 in (1,600 mm), Brazil Driver dia. 40 in (1,016 mm) diameter Length 65 ft 8 in (20.02 m) over the coupler pulling faces; 65 feet 9+1⁄2 inches (20.053 m) on some units starting early 1968. Width 10 ft 0 in (3.05 m) Height 15 ft 5+1⁄4 in (4.71 m) Loco weight 360,000 lb (160 t) Fuel capacity 3,200 US gal (12,000 L; 2,700 imp gal) Lubricant cap. 243 US gal (920 L; 202 imp gal) Coolant cap. 295 US gal (1,120 L; 246 imp gal) Sandbox cap. 56 cu ft (1.6 m3) Prime mover EMD 16-645E3 Engine type V16 diesel Aspiration turbocharged Alternator main : AR-10 auxiliary : D14 Generator (?) Traction motors D-77 Cylinders 16 Loco brake Independent air\ optional: dynamic brakes Train brakes Air, schedule 26-L
Performance figures Maximum speed 83 mph (134 km/h) Power output 3,000 hp (2,240 kW)
Career Locale North America South America Africa

The EMD SD40 is an American 6-axle diesel-electric locomotive built by General Motors Electro-Motive Division between January 1966 and August 1972. 1,268 locomotives were built between 1966 and 1972. In 1972, an improved version with new electronics was developed and marketed as a new locomotive, the SD40-2.