HO SD40 Locomotive with DCC and Sound (ATH73744)

HO-scale SD40 locomotive with DCC and sound, a detailed model built for realistic operation on HO layouts. This faithful replica captures the look and feel of the EMD SD40 with authentic features such as LED lighting, photo-etched windshield wipers, separately applied grab irons and air tanks, curved radiator fan grab irons, a detailed 4,000-gallon fuel tank, and fine scale handrails. It rides on Flexicoil-C trucks with precision gearing for smooth, quiet running and uses all‑wheel electrical pickup for dependable power. The injection-molded body and McHenry scale knuckle couplers (Kadee-compatible) deliver a convincing, prototype-accurate silhouette for mainline, yard, or industrial trackage on an HO layout.

Sound-equipped version features an onboard DCC decoder with SoundTraxx Econami sound, delivering engine, horn, and bell sounds that respond to DCC controls and, in many cases, to DC operation as well. A single cube speaker provides clear, robust audio, and the system is NMRA-compliant in DCC mode with CV options for tuning performance and sound. Quick Plug plug-and-play technology with a 21-pin NEM connector simplifies installation or upgrades, and the model supports multi-unit lashups with a lead unit horn, bell, and lighting. Minimum curve radius is 18 inches, with 22 inches or larger recommended for smooth operation on curves.