HO DDA40X Locomotive UP #6901 (ATHG71521)

HO Scale Union Pacific DDA40X Centennial Locomotive, UP 6901. This detailed HO model reproduces UP’s famed 98-foot double-engine diesel, built by EMD for Union Pacific between 1969 and 1971, capturing the road-number specific appearance of 6901 with its distinctive grille treatment and a late-career finish for an authentic presence on HO layouts.

Designed for realistic operation, it features illuminated truck lights, classification lights, and number boards, plus see-through walkways and MU hoses for prototypical detail. The #6901 variant is primed for grime to reflect its final years in service and includes a unique chicken-wire radiator grille pattern. The model rides on a heavy die-cast frame with eight-wheel drive and RP25 wheels for smooth, quiet operation, and offers DCC-ready Quick Plug technology with a 21-pin NEM connector. Sound-equipped versions add Tsunami2 audio with four cube speakers and full DCC functionality, while options like Primed for Grime finishes and Legendary Liveries provide additional ways to customize a UP roster on the layout.