HO SD40R Locomotive Southern Pacific Kodachrome (ATH73633)

HO SD40R Locomotive in Southern Pacific Kodachrome is an HO-scale model built to bring the SP SD40R prototype to life on your railroad. The locomotive showcases a highly detailed injection-molded body, see-through cab windows, LED lighting, and fine details such as photo-etched windshield wipers, separately applied grab irons and air tanks, and a curved radiator fan grab iron for an authentic silhouette. It’s designed for use on standard layouts and can run on DC or DCC, delivering smooth, quiet operation on typical track curves; a minimum radius around 18 inches is recommended, with 22 inches preferred for optimum clearance and performance.

Under the hood, the SD40R features an all-wheel-drive chassis with precision gears for dependable, quiet operation, plus RP25 wheel contours and Flexicoil-C trucks for smooth tracking on a range of brands. It is DCC-ready with Quick Plug 21-pin NEM connectors, and sound-equipped versions include an onboard SoundTraxx Econami decoder with a single-cube speaker for engine, horn, and bell sounds in DCC mode (some DC functions may be limited; all NMRA functions remain accessible in DCC). The SP Kodachrome scheme is faithfully reproduced with McHenry scale knuckle couplers (Kadee-compatible), exposed fuel tanks, an exhaust stack, and other prototypical details, making it a compelling centerpiece for HO-scale fleets.