Trainz Product Id: 12425437

Trainz Product Id: 11563722

Trainz Product Id: 12310778

Trainz Product Id: 11446031

Trainz Product Id: 11571045

MTH 80-3209-1 HO Union Pacific 4-8-8-4 Big Boy #4-0-16 with PS 3.-0 DwDetails-0.21-0.16-1.00-1.00-1.00-1 Trainz Product Id: 12425437This is MTH 80 3209 1 HO UP 4 8 8 4 Big Boy #4016 3. 0. 4 8 8 4 Big Boy (original) steam engine with Proto Sound 3. 0, Union Pacific. Cab number: 4016. Just months before Pearl Harbor, the American Locomotive Company delivered the first Big Boy to the Union Pacific Railroad. The UP's Department of Research and Mechanical Standards had designed the locomotive for a specific task: to pull a 3600 ton train unassisted over the Wasatch Mountains in Utah.