The K4 4-6-2 is now available in Bachmann’s line of N scale DCC sound-equipped locomotives with our Sound Value SoundTraxx® steam package that includes authentic prototypical chuff, short and long whistles, bell, air pump, steam release, and blower—all in 16-bit polyphonic sound. This finescale engine also features a die-cast chassis, precision motor, and prototypical detailing. The Pre-War K4 models, based on a World War I-era model, feature distinctive “chicken coop” slat pilots, while the Post-War versions are equipped with modern pilots. See the locomotive in action in the video below.