MTH - Premier Diesel Locomotives (Scale Wheels) - GP-40  - O Scale 2 Rail

Both under the hood and under the frame, the GP40 exemplified EMD's product line in transition. Along with its less-powerful sister, the GP38, the Geep 40 was the first EMD locomotive with the model 645 diesel motor. Its predecessor, the 567 diesel that had powered EMD locos since the late 1930s - named for its 567 cubic inch displacement per cylinder - had become inadequate to meet customers' demands for higher horsepower.