Athearn 39012 - HO Modern Yard Tractor - Norfolk Southern #562821

HO Modern Yard Tractor - Norfolk Southern #562821 Completely assembled Many separately applied parts Interior details Rubber tires Photo-etched steps and rear deck Adjustable 5th wheel height Clear window glazing As seen in intermodal yards around the country PROTOTYPE AND BACKGROUND INFO: A terminal tractor, also known as a yard tractor, is a kind of semi-tractor intended to move semi-trailers within a cargo yard, warehouse facility, or intermodal facility, much like a switcher locomotive is used to position railcars.