This page lists our available inventory of generators. If you are interested in other types of generators, please view our entire inventory of generator sets. Generator Source primarily sells industrial and commercial new,used & surplus generators between 50 and 4000 kW and only buy gensets from the industry’s leading manufacturers like Caterpillar, Cummins, MTU Onsite Energy, Kohler and more. Most of these units are on-site and ready to ship immediately. Browse the listing below or sort our inventory using the dropdown menus: