Athearn 22900 N Union Pacific 4-8-8-4 Big Boy with DCC & Sound Oil Tender #4005.

Big Boy 4014 first start up

athearn 22900 n union pacific 4-8-8-4 big boy with dcc & sound oil tender #4005. It Features Boiler backhead with full detailing, Individually applied piping, valves, generators, etc. Standards for all toy train related accessory items apply to the visual appearance of the item and do not consider the operating functionality of the equipment.