HO GP7R Locomotive ROCK #4540 (ATHG-1346)

HO-scale GP7R Locomotive in Rock Island livery, a rebuilt-era diesel switcher designed for HO layouts. This model captures the mid‑century look with prototype-accurate details such as see-through cab windows and a full cab interior, etched grills, and fine-scale Celcon handrails that give the engine a true scale appearance.

Built for reliable operation, it features a heavy die-cast frame for traction, Blomberg-B trucks, and body-mounted scale knuckle couplers. RP25 wheels help it run smoothly on common track, while bidirectional LED lighting keeps power to the headlight consistent. DCC-ready Quick Plug technology with a 21-pin NEM connector makes decoder upgrades straightforward, and sound-equipped variants add onboard DCC with SoundTraxx Tsunami2, dual speakers, and full NMRA-compatible functions for authentic engine sounds in both DC and DCC operation. The model is optimized for HO layouts with an 18-inch minimum radius and a 22-inch radius or larger for best performance.