IMMEDIATE AVAILABILITY | Expedited Shipping - US & Canada


We Buy & Sell Industrial Generators

Established 1981

Cummins 500KW
Caterpillar 2000KW
Generac 500KW
Cummins 1000KW
Providing Industrial Power for Over 35 Years
Diesel Service & Supply offers worldwide sales of New Surplus and Used Diesel Generators, Electric Power Generator Sets, Automatic Transfer Switches, Standby Gensets, and Natural Gas Generators. We buy and sell all major high performance brand name manufacturers, including: Caterpillar, Cummins, Detroit, Kohler, Katolight, Onan, and Generac. Diesel Service & Supply has been supplying commercial and industrial diesel powered solutions for over 35 years. To view an updated list of the products we have for sale, browse our extensive Inventory, or use the side navigation, buttons below or pull down menus.

In-Stock & Ready to Ship!


Surplus Generators

Why Diesel Service and Supply
Our customers in the utilities, telecom, hospital and data center markets, as well as the industrial sectors of construction, agriculture, oil & gas, manufacturing, mining and farm/dairy industries have come to rely on our outstanding selection and service for all their power generation requirements and standby emergency backup power needs.

We have a full service shop, staff of certified power generation technicians, multiple load bank testing stations, cranes and foklifts, a 14 acre industrial facility, and we thoroughly check and test all of our products! And, if you don't see what you're looking for on our site, don't worry, call 844-753-7379 or contact us online today.  Chances are good we probably have something very similar or can find it for you!
Four New 500 kW Cummins Generator Sets
New Arrivals 5 Caterpillar Generators Available
Colorado Generator Service

Generator Search

We Buy Used & Surplus Generators!

Get $$$ for your used power generation equipment

Interested in Used Power Generators?