HO 4-6-6-4 Challenger Locomotive Union Pacific #3967 with DCC and Sound (ATHG98973)

Union Pacific HO-scale 4-6-6-4 Challenger locomotive UP 3967, equipped with DCC and sound, is a ready-to-run representation of the famous Challenger class. Designed to model the wartime UP Challengers, this coal-burner features dual smokestacks and smoke lifters and reflects the 1940s–1959 era in UP service. With built-in DCC and synchronized sound, it delivers authentic chuff, whistle, bell, and other locomotive effects to bring your layout to life.

On the rails, the model offers illuminated number boards and headlights, a tender back-up light, and detailed finish including cab features and piping. It uses dual cube speakers for robust sound, a flickering see-through firebox, and a brighter LED headlight. The locomotive runs on DC or DCC with NMRA-compliant functions and CV control for tuning performance, including a 22" minimum radius and pivoting engines to negotiate 18" curves. Road-number-specific features for UP 3967 include coal burner, dual smoke stack and smoke lifters, capturing the 1940s–1959 era.