The Athearn ATH72191 is an HO scale SD40-2 locomotive, numbered EMDX #6313, and comes with DCC and sound features. EMD, known for locomotive building, also had a lease fleet. Railroads could lease power for short or long - term, with EMD handling maintenance. EMD features include ex - MILW, a short fuel tank, a Leslie 3 - chime horn, early radiator grilles, 2 different plows, a firecracker antenna, and a bell on the conductor’s side behind the cab. The SD40 - 2 locomotive is fully assembled and ready to run. It has Quick Plug™ plug - and - play DCC technology with a 21 - pin NEM connector. It's accurately scaled from prototype resources, with precise paint and prints. Other features are coupler cut levers, flexible rubber hoses, see - through cab windows, fine - scale handrails, photo - etch windshield wipers, wire grab irons, a detailed fuel tank, and separately applied air tanks. It has all - wheel drive, electrical pickup, RP25 contour wheels, bi - directional LED lighting, and a heavy die - cast frame. The sound - equipped models have dual cube speakers and a Tsunami2 sound decoder. The SD40 - 2 was introduced in 1972, being reliable and versatile, and became the best - selling EMD model. Specifications: DCC equipped, Tsunami2 sound, EMD prototype manufacturer, 6 axles, LED lighting, minimum age 14 years, no assembly required.

Using this Athearn HO scale SD40 - 2 locomotive is easy. It's fully assembled, so you can start using it right out of the box. Just connect it to your DCC system using the 21 - pin NEM connector if you're using DCC. For DC operation, the sound unit still works for engine, horn, and bell sounds. When running it on the track, make sure the minimum radius is at least 18 inches, but a 22 - inch radius is recommended for better performance. As for maintenance, keep the locomotive clean. You can use a soft brush to remove dust from the body, wheels, and electrical contacts. Check the flexible rubber hoses regularly for any signs of wear and replace them if needed. Store the locomotive in its original packaging to protect it. It comes with a warranty, so if you have any problems, you can get it serviced. This product is recommended for users aged 14 and above, so keep it out of reach of younger children.