HO SD45T-2 Locomotive with DCC and Sound Union Pacific 4819 (ATH86967)

Union Pacific HO-scale SD45T-2 Locomotive with DCC and Sound, UP 4819, is a ready-to-run model built to bring authentic Union Pacific power to a model railroad. Recreating the Tunnel Motors look, it features a nose headlight, a modified L-window cab, roof air conditioning, a Nathan P-3 horn, pilot-mounted ditch lights, a large front plow, and a small anticlimber for a distinctive UP silhouette that responds to DCC control with built-in sound.

Inside, the model delivers fine-scale details such as handrails, windshield wipers, air tanks, LED lighting, see-through cab windows, welded ECAFB, and all-wheel electrical pickup for smooth operation. It is DCC-ready with a 21-pin NEM Quick Plug, and sound-equipped variants house a SoundTraxx Economi decoder for engine, horn, and bell sounds in both DC and DCC with full function control and excellent slow-speed performance. The six-axle, 3600-horsepower powertrain uses a 5-pole motor with flywheels and precision gearing for quiet, reliable operation, while nickel-plated, blackened wheels with RP25 contours and McHenry knuckle couplers help it track faithfully on most HO layouts. A minimum 18-inch radius (22 inches recommended) ensures smooth handling, and prototype notes highlight the 20-cylinder 645-series engine and the Tunnel Motors cooling design that aided tunnel operation.