This Bachmann HO scale Union Pacific DD-40X Diesel locomotive is a perfect addition to your collection. With its 8-8 wheel configuration and replica of the Electro-Motive Diesel (EMD), this vintage model train is sure to impress. The analog control system and two-rail system make it easy to use and perfect for any model railroad enthusiast. The scale of 1:87 adds to its authenticity and makes it a great choice for display or play.