Larger manufacturers will, with locomotives as popular as the GP9, offer various levels of detail depending on what a modeler may be looking for. Manufacturers offering EMD GP9s include Walthers ...
Seems like everybody had a GP7 or a GP9 on the roster back in the day ... Yet in 1950, the smaller railroad purchased a single 1,500-hp EMD GP7 with a steam generator for backup passenger assignments.