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52 Generators For Sale

Featured Generators

Used Generators

Aaron Equipment has a large inventory of reconditioned, unused, and used generators. Aaron's inventory of generators include cogenerations, steam turbine, gas, new generators, and diesel generators. Aaron Equipment Company offers a complete selection of low hour commercial generators and gen set accessories.

Generators are used as an emergency power supply which will generate back up power if the master power source fails. A reliable power source is important to every business. For many, it’s an absolute necessity. Whatever your backup or mobile power needs, we have dependable, ready-to-ship unused and used generators ranging in size from 100kW to 2000kW. We stock an array of diesel, natural gas and cogeneration sets, as well as transfer switches and related equipment and accessories. Every pre-owned item in our inventory is available for a load test prior to sale.

If you are looking to sell your used generators submit a request online or contact Erik Eichert at 630-238-7480.

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Everything You Need To Know Before Buying A Used Industrial Generator

What are generators used for?

  • Industrial generators are used as backup power sources or, in some cases, to run operations in remote areas.

Are There Different Types of Generators?

  • Yes! Generators broadly fall into two categories: diesel fuel vs. natural gas. Before buying a used generator, you should know what type of fuel you intend to use.

Does the size of the generator matter?

  • Yes! The size of the generator matters, depending on what you intend to power. Powering a hospital will require a much larger generator than the one required to power a small strip center.

Are There Critical Things I Should Investigate Before Buying A Used Industrial Generator?

  • Yes! Before buying a generator, you should ask how many hours it was used since the more hours it has, the more likely it will need maintenance and repairs. You should also have the generator “load tested.” Load testing involves running the generator to check that it can respond to and support the required power load. It also confirms that the generator is in good working order. Most dealers will provide a load test.

Are There Preferred Manufacturers of Generators?

  • Yes! While many reputable generator manufacturers exist, the market prefers Caterpillar, Cummins and John Deere generators.

Are There Other Things To Consider?

  • Yes! In 2023, California prohibited the sale of new gas-powered generators under 25 kilowatts and raised the emission standards for existing generators. Other states have begun to follow suit, so you should make sure the generator you intend to buy meets local and state regulations.
  • You should also consider the age of the generator and whether it was used as a backup or primary generator.

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