The 3,600-horsepower EMD SD45 was one of the most powerful and popular diesels during the 1960s horsepower race. This model captures the burly looks and big sounds of the prototype in a smooth-running model. Features Sound Value(R) SoundTraxx(R) diesel sound package with prototypical prime mover, 3 airhorns and bell – all in polyphonic 16-bit sound.