BACHMANN MKT #610 EMD SD40-2 LOCO W/DCCHO SCALEEMD SD40 2 MKT #610 Model: 60919 Shipping Weight: 1. 7lbs Scale: HO 1: 87 EMD SD40 2 Diesel Locomotive MKT #610 HO Scale. The SD40 2 was one of EMD's best selling locomotives, with nearly 4,000 units delivered to more than 30 railroads between 1972 and 1989. Today, the vast majority remain in operation, many with their original owners (or their successor railroads), and examples can be found both across North America, and on railroads as far afield as