HO GEN 4-8-8-4 Big Boy Locomotive and CA-11 Snowbus Caboose (ATHG-2077)

HO scale Genesis Big Boy locomotive with CA-11 Snowbus Caboose is a detailed, ready-to-run pairing designed for HO railroading, recreating Union Pacific’s iconic 4-8-8-4 steam power alongside a matching Snowbus caboose. The locomotive lights up with illuminated headlights and number boards, features a tender back-up light, and delivers synchronized chuff, whistle, bell, and related sounds through a DCC sound decoder with dual speakers, operable on both DC and DCC layouts. The CA-11 Snowbus Caboose adds a richly detailed interior, lit walkway lights, see-through end platforms, etched window screens, and authentic underframe details for a complete, era-accurate scene.

Built for reliable HO operation, the set uses current pickup on all wheelsets, machined metal wheels with RP25 contours for smooth tracking on popular tracks, and a weighted, ready-to-run chassis. It includes a robust loco-to-tender harness and multiple road numbers for variety, plus an authentic finish with careful detailing. The locomotive and caboose specify minimum radii of 22 inches and 18 inches respectively, making the pairing compatible with a wide range of HO layouts while delivering a vivid UP-era pairing of engine and car.