Union Pacific PA-1 Locomotive with DCC and Sound in HO scale, road number 604, is a detailed reproduction of the classic Alco PA/PB family designed to bring authentic UP-era operation to a model railroad. It pairs modern DCC with integrated sound for lifelike performance and smooth running on your layout.

Designed for serious HO-scale layouts, this model features road-name-specific detailing, including separate grab irons and handrails, etched-metal grilles, lit number boards, and a full cab interior, plus extensive underbody piping and conduit. It offers a choice of DC/Silent (21-pin DCC Ready) or DC/DCC/Sound configurations, powered by an ESU LokSound V5 decoder for rich, prototypical audio. Available as a standalone A unit or as an A-B set, it can include dynamic or non-dynamic braking and lighting options such as a Gyralite or Mars light where appropriate, ensuring a convincing UP locomotive on any layout.