HO SD40 Locomotive Undecorated (ATH73647)

HO SD40 Locomotive, Undecorated is an HO-scale model of the EMD SD40 diesel designed for hobbyists who want to customize their own roadnames and liveries. This undecorated version carries a high level of scale detail, including LED lighting, see-through cab windows, photo-etched windshield wipers, separately applied wire grab irons and air tanks, and a detailed fuel tank, providing a ready canvas for painting and lettering your own scheme.

Built for dependable operation on typical HO layouts, it is DCC-ready with Quick Plug plug‑and‑play 21-pin NEM compatibility for easy decoder installation. It features all-wheel drive for smooth power pickup, RP25 wheel contours for reliable tracking, and McHenry scale knuckle couplers (Kadee‑compatible). The minimum radius is 18 inches (22 inches recommended). Sound-equipped variants add an onboard decoder with SoundTraxx Econami sound, a single speaker, and engine, horn, and bell sounds that work in both DC and DCC, with NMRA‑compatible function control in DCC mode.