Track Cleaning 40' BOX CAR - UNION PACIFIC (Damage Control Car) - HO Scale. Bachmann's track cleaning car provides an efficient and economical way to clean your track. This car's exclusive dry cleaning system features a reusable track cleaning pad. Additional features include: 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.