Union Pacific DDA40X Centennial #6936 in Freight Service on the Kansas Sub! - YouTube
DD40X Diesel
Locomotive #6936 – DD40X | Railroading Heritage of Midwest America
RailPictures.Net Photo: UP 6936 Union Pacific EMD DD40X at Tehachapi Pass, California by southland… | Union pacific train, Union pacific railroad, Train photography
Locomotive profile: DDA40X | Trains Magazine
Athearn HO scale EMD DDA40X diesel locomotive | ModelRailroader.com
Athearn Genesis ATHG71521 HO EMD DDA40X, Standard DC, Union Pacific #6901
DD40X (DCC & Sound): UP #6905 & 6910 Version | Athearn Genesis
Worlds largest diesel locomotive on the Cheyenne turntable DD40X 6936. - YouTube