N GEN 4-8-8-4 Big Boy Locomotive UP 4024 (ATHG-2249)

Union Pacific No. 4024 Big Boy is a highly detailed, ready-to-run scale locomotive from the Genesis line, built to faithfully reproduce UP's legendary 4-8-8-4 Big Boy. This striking model serves as a commanding centerpiece for any serious layout, capturing the power and history of one of railroading's most iconic steam engines.

It showcases intricate backhead details with printed gauges, individually applied piping, operating eccentric cranks, see-through running boards and cab windows, and a heavy die-cast frame for traction. The locomotive uses body-mounted scale knuckle couplers and bidirectional LED headlights with constant brightness. Sound-equipped versions add an onboard DCC decoder with SoundTraxx Tsunami2 sound, operable in both DC and DCC with full function control, including chuff, whistle, and bell sounds. Road-number options and Legendary Liveries—such as the Greyhound scheme for No. 4024—allow authentic customization, and the model is designed for an 11-inch minimum radius layout for smooth operation.