HO EMD SD90MAC-H Phase 2 Locomotive UP Flag #8525 (ATHG-1036)

An HO-scale EMD SD90MAC-H Phase 2 Locomotive in Union Pacific’s “Flag” livery (road number 8525), this ready-to-run model offers a faithful, high-detail representation of UP’s Phase 2 SD90MAC power for HO layouts.

Designed for serious model railroaders, the model features a heavy die-cast frame and a wealth of prototypical details, including a full cab interior, etched see-through steps, walkways, windscreen wipers, wire grab irons, and scale handrails. It rides on RP25-contoured wheels with all-wheel electrical pickup and a Genesis-style driveline for smooth, quiet operation, and it’s DCC-ready with a Quick Plug 21-pin NEM connector plus body-mounted scale knuckle couplers. Painted and printed to authentic schemes, it arrives fully assembled and ready to run. Sound-equipped versions add onboard DCC with SoundTraxx Tsunami2, dual speakers, and full DCC functionality, while DC operation supports engine, horn, and bell sounds with CVs for customization. The minimum layout radius is 18 inches, with 22 inches recommended for best performance.