The Athearn ATH72188 is an HO scale model of the KCS Kansas City Southern SD40 - 2 locomotive, numbered #639, and comes equipped with DCC and sound. KCS features include KCS/Chessie style rock plows, a 5 - chime horn, front and rear ditch lights, and nose - mounted gyra lights (effective in DCC). In the 1990s, KCS repainted some SD40 - 2s in a grey scheme with yellow stripes, added nose - mounted gyra lights, and moved the horn to the back. The SD40 - 2 locomotive offers fully - assembled and ready - to - run convenience. It has DCC - ready features with Quick Plug™ plug - and - play technology and a 21 - pin NEM connector. Scaled from prototype resources, it has accurately painted and printed paint schemes. It also has many detailed features like coupler cut levers, flexible rubber hoses, see - through cab windows, fine - scale handrails, and more. Sound - equipped models feature dual cube speakers and a Tsunami2 sound decoder. The SD40 - 2 was a best - selling model from EMD, known for its reliability and versatility since its introduction in 1972. Specifications include DCC and Tsunami2 sound, 6 axles, LED lighting, and is recommended for ages 14 and up with no assembly required.

Using this Athearn SD40 - 2 locomotive is a breeze. It's fully assembled, so you can just take it out of the box and start running it on your HO scale track. If you're using DCC, it's ready to go with the Quick Plug™ technology. For sound, the dual cube speakers and Tsunami2 decoder will give you a great experience in both DC and DCC modes. When operating, make sure your track is clean for smooth movement. The locomotive has a minimum radius of 18 inches, but a 22 - inch radius is recommended. For maintenance, keep it clean. You can gently wipe the body with a soft cloth. Check the couplers regularly to ensure they're working properly. Store it in the provided packaging to keep it safe when not in use. And remember, this product is recommended for users 14 years and up.