The Canadian National Railway acquired 123 of the SD40-2W locomotives, numbered 5241-5363. The InterMountain Railway Co. model is manufactured with the 4-window safety cat, the snow shields over the air inlets, and the distinctive stairwells and handrails. The model features include: etched metal details; wire grab irons; laser sharp paint and lettering; and Kadee® couplers. These locomotives have the smooth, powerful drive that is DCC ready, and are equipped withMicro-Trains® couplers.