HO SD40 Locomotive with DCC and Sound, PC 6243 (ATH73742)

HO-scale SD40 locomotive with DCC and sound is a ready-to-run model designed for HO-layout enthusiasts who want authentic operation and audio realism. It recreates the classic EMD SD40 and includes an onboard DCC decoder with SoundTraxx Econami sound to deliver engine, horn, and bell sounds as you pull trains around the layout.

The model features LED lighting, fine-scale detailing such as photo-etched windshield wipers, wire grab irons, and see‑through cab windows, all on a durable injection-molded body with RP25 wheels for compatibility with most HO track and smooth, quiet operation. It is DCC-ready with Quick Plug and a 21‑pin NEM connector for easy decoder upgrades; sound-equipped versions also include a single-cube speaker and NMRA‑compliant functionality in DCC, with engine/horn/bell sounds active in DC and some functions limited in DC. Minimum recommended radius is 18 inches, with 22 inches preferred for best appearance and performance.