Atlas Model Railroad Co.
Atlas Master(R) Series Silver Diesel MP15DC Powered DCC Ready (No Sound)

Union Railroad #31 (blue, white, yellow)
Walthers Part # 150-9998
HO scale, $149.95, sold out at Walthers

 
This smooth-running model features a roadname-specific body and plenty of applied details. The locos are DCC ready and feature an eight-pin socket for easy decoder installation.