The EMD SDP45 was a six-axle, C-C, 3,600-horsepower (2,680 kW) diesel-electric locomotive built by General Motors' Electro-Motive Division of La Grange, Illinois. It was fundamentally a passenger-hauling version of the SD45 on a stretched locomotive frame and with an extended, squared-off long hood at the rear, aft of the radiators, giving space for a steam generator for passenger train heating. This steam generator placement followed the pattern set by the SDP35 and SDP40.
A few SDP45s remain in service, rebuilt to SD40-2 standards.
Read more about EMD SDP45: Original Owners, Roster, Rebuilds, Preservation