N GEN 4-8-8-4 'Big Boy' Locomotive Legendary Liveries SOU #4075 (ATHG-2251)

Introducing the Athearn Genesis 4-8-8-4 Big Boy steam locomotive in Legendary Liveries, Southern Railway (SOU) No. 4075, an N-scale model designed for serious layout use. This fully assembled, ready-to-run replica captures the sheer scale and power of the iconic 4-8-8-4, bringing the drama of heavy freight service to the layout with a historically inspired Southern livery that nods to classic railroading eras.

Inside, the model hides a wealth of detail and performance: a boiler backhead with printed gauges, individually applied piping and fittings, and operating eccentric cranks, all complemented by directional LEDs and see-through running boards and cab windows. A heavy die-cast frame and a 5-pole skew-wound motor deliver solid traction and smooth operation, while body-mounted scale knuckle couplers and a minimum radius of 11 inches make it ready for realistic layouts. For sound enthusiasts, an onboard DCC decoder with SoundTraxx Tsunami2 provides chuff, whistle, and bell sounds and works in both DC and DCC with full NMRA-compatible functions; MU lashups are supported, CVs can be adjusted, and a CV chart is included in the box.