HO GEN GP39-2 PH I Locomotive ATSF #3621 (ATHG-1963)

An HO-scale GP39-2 diesel locomotive in Santa Fe livery (ATSF #3621) from Athearn. This detailed HO model faithfully reproduces the GP39-2 prototype, capturing phase I body details and the Santa Fe color scheme for authentic operation on HO layouts.

Key features include a Genesis drivetrain with a five-pole motor for smooth, quiet operation, a heavy die-cast frame for traction, and LED lighting with lit number boards. It rides on RP25-wheel contours for reliable tracking and uses body-mounted, Kadee-compatible couplers, with see-through cab interiors, etched handrails, and a detailed fuel tank. The model is DCC-ready with Quick Plug plug-and-play technology and a 21-pin NEM connector for easy digital control. Sound-equipped versions add Tsunami2 sound with dual speakers and full DCC functionality, and road-number variations reflect different Santa Fe schemes.