HO AC4400CW Locomotive with DCC and Sound, UP 6837 (ATHG31793)

HO-scale AC4400CW Locomotive with DCC and Sound in Union Pacific UP 6837. This highly detailed model faithfully recreates GE’s AC4400CW in UP livery, including a red frame stripe and road-number-specific touches like a Leslie 3-chime horn, a large roof-mounted GPS dome, and a walkways capacitor box. It’s designed for modern HO layouts with DCC-ready Quick Plug technology and a 21-pin NEM connector, and features prototype-accurate LED lighting with illuminated number boards and front/rear walkway lights.

Built on a Genesis drive with a heavy die-cast frame, this model offers all-wheel-drive performance, reliable current pickup, and RP25-wheel contours for smooth operation on HO track. The sound-equipped version includes an onboard DCC decoder with SoundTraxx Tsunami2 and dual speakers for realistic engine, horn, and bell sounds, plus full DCC functionality and CV-based tuning for precise slow-speed control. Road-number-specific UP 6837 details—red frame stripe, Leslie 3-chime horn, GPS dome and related details—make it a road-name-accurate centerpiece for Union Pacific operations on busy mainlines.