Alco’s 1,000-HP S4 switcher was the fourth entry in the company’s highly successful “S” series of diesels. Their sturdy construction and ease of maintenance made them popular with a wide variety of railroads. This DCC sound-equipped S4 diesel includes our Sound Value SoundTraxx® diesel sound package with prototypical prime mover, 3 air horns, and bell—all in polyphonic 16-bit sound.
operating dual directional headlights
die-cast fuel tanks and underframe
E-Z Mate® Mark II couplers
Performs best on 18" radius curves or greater.