Close up of a AZL UP SD40-2 Snoot Nose. The EMD SD40-2 is a 3,000 horsepower (2,250 kW) model of C-C diesel-electric locomotive built by General Motors ' Electro-Motive Division between January 1972 and February 1986 ; 3,957 examples were built, and most larger North American railroads have operated the type.