HO GEN SD90MAC Locomotive UP #3712 (ATHG-1915)

HO scale Genesis EMD SD90MAC diesel locomotive in Union Pacific livery, UP 3712. This ready-to-run HO model from Athearn Genesis captures the power and presence of a modern high-horsepower freight locomotive, delivering prototypical detail and reliable performance on a home layout.

Designed for authentic operation, this model features a heavy die-cast frame with a Genesis driveline and a smooth 5-pole motor for solid pulling power. It includes LED lighting, lit number boards and ground lights, etched see-through steps, a full cab interior, windshield wipers, and fine-scale handrails. The model is DCC-ready with a Quick Plug 21-pin NEM connector, uses body-mounted McHenry knuckle couplers, and offers dependable current pickup across all wheels. Road-number-specific details for UP 3712 include a nose door with window to reflect prototype variations. Minimum curve radius is 18 inches, with 22 inches recommended for best performance.