HO RS-3 Locomotive WM #185 (ATH-2151)

HO-scale RS-3 Locomotive WM #185 is a faithful reproduction of the ALCO RS-3 diesel-electric locomotive, rendered in Western Maryland's WM livery for HO layouts. This ready-to-run model captures the prototype’s distinctive silhouette and detailing, delivering authentic mid‑century diesel power to an HO roster or yard operation.

Designed for flexible operation, it features a powerful, quietly running can motor and DCC-ready Quick Plug technology with a 21-pin NEM connector. DCC and sound variants use SoundTraxx Econami with a cube speaker, complemented by LED lighting for long life. Detailing includes see‑through etched radiator fans and cab windows, metal grab irons, fine-scale handrails, and a heavy die-cast frame for traction, along with RP25‑contoured wheels for compatibility with popular HO tracks and McHenry operating knuckle couplers. The drivetrain uses a 5‑pole motor with flywheels and a multi‑link drive, with all‑wheel drive and electrical pickup for steady power, and a minimum 18" radius (22" recommended) for smooth operation. Sound-equipped models add an on‑board decoder with Econami sound, engine/horn/bell sounds in DC and DCC, and NMRA‑compatible CVs (a CV chart for MU lashups is included). Fully assembled and ready to run, this RS-3 brings classic diesel presence to HO layouts with reliable, modern performance.