EMD GP-40 DCC Ready Locomotive - CHESSIE #4155 - HO Scale. The Electro-Motive Division's GP40 series was manufactured between the mid-1960s and mid-1980s and can be found in service on regional and short lines. This Bachmann model is DCC-ready with a factory-installed 8-pin plug for DCC decoder installation of your choice. Featuring a Die-cast Chassis, and All Wheel Drive. this model Performs best on 18" radius curves or greater.