40 Box Car - PS1 40’ BOX CAR - UNION PACIFIC® #107272 - HO Scale. Box Cars are the workhorse on any railroad, as they are used to economically move merchandise across the country. Our 40 foot Box Cars come in a variety of road names, with prototypical paint schemes. Bachmann Silver Series® rolling stock features: Highly Detailed Painted Body with Precision Graphics, Sliding Doors, Blackened machined-metal wheels with RP25 contours, Magnetically operated body mounted E-Mate® couplers, Blackened-brass axles with needlepoint bearings, Celcon trucks, and has added weight for optimum tracking.