HO Model Database

The TrainDex HO scale model database catalogs thousands of diesel locomotives, freight cars, and passenger cars from manufacturers like Athearn, ScaleTrains, Kato, Atlas, Walthers, Intermountain, and Rapido. Each model entry includes specifications, product line details, prototype information, and links to active marketplace listings so you can compare prices across sellers.

HO scale (1:87) is the most popular model railroad scale in North America, offering the best balance of detail and layout size. Models range from budget-friendly ready-to-run trainsets to museum-quality replicas with DCC sound decoders, individual grab irons, and road-number-specific details. Use the filters below to narrow by category, manufacturer, or feature set — or search for a specific prototype like the EMD SD40-2 or GE ES44AC.