Used Diesel Generators

Yes, our stock of used diesel generators for sale includes standby generators for your emergency and backup power systems and prime power generators for your facility’s main source of power.

Whether you need sudden emergency power or uninterrupted, continuous operation, Global Power Supply has a broad inventory of used yet well-maintained diesel generators. Our stock includes generator sets from top brands like MTU, Generac, and more, all running from 20 kW to 2000 kW with numerous voltage settings.

Global Power Supply’s stock of used diesel generators includes both mobile and stationary generators.

We have several mounted-on trailers, ready to move out and provide ample power wherever you need it. Many of our stationary units are also securely enclosed and sound-attenuated, ensuring quality performance and reliability for your commercial or industrial power systems.

Whether you require mobility or a stationary on-site generator, Global Power Supply has a wide variety of used diesel generators for you to choose from. Browse our selection and find one that fits your precise needs and specifications.

If mobile generators are part of your search, visit our mobile diesel generators page and explore our available models.

Yes, we provide rentals for a range of critical power solutions, including:

• Diesel generators
• Natural gas generators
• Uninterruptible power supply (UPS) systems
• Automatic transfer switches
• Load banks

These can be delivered to you on mobile trailers or as stationary units. Our power expert team at Global Power Supply will work to ensure our solutions fit your needs, budget, and specifications. No matter what your job site requirements, we’ll help you get the systems you need and have them delivered to your location as soon as possible. Learn more about generator rentals and other critical power solutions today.

Our used diesel generators are excellent solutions for back-up and prime power systems across a wide range of industries and critical facilities, such as:

• Data centers
• Hospitals and healthcare facilities
• Telecom operation sites
• Commercial buildings and warehouses
• Oil & gas operations
• Manufacturing and production plants
• Government buildings and installations
• Processing centers
• Universities and educational institutions
• Stadiums and entertainment venues

These are just some of the many areas where our used diesel generators can be installed to power vital operations and events.

In addition, Global Power Supply provides various industry solutions, ensuring that every industrial power need is met and that your energy systems remain secure and resilient.

It’s often more beneficial to buy a used diesel generator from a reputable source like Global Power Supply, which rigorously tests and maintains our entire inventory of diesel generators, both used and new. Here are a few reasons why:

• Cost-Effective: Compared to the cost of a brand-new generator, buying and installing a used diesel generator can save a facility thousands of dollars or more. This can free up budget space for many other necessary improvements or repairs, all while ensuring your operations get the power they need.
• Immediate Availability: A used diesel generator can be transported and delivered to your facility soon after purchase, while buying a new generator can sometimes require lengthy manufacturing lead times that many companies and organizations can’t afford to wait on.
• Reliable Operation: Many of our used generators come from top brands with low service hours. This means they feature high-quality construction, are built to last, and still have many years of service life remaining.
• Flexibility: Buying used diesel generators means you can modify them to fit your power systems. Purchasing yours from Global Power Supply also means you can contact our team for additional engineering solutions to ensure your used diesel generator fits your facility’s exact specifications and needs.

There are several factors to consider when choosing the best used diesel generator for your facility. Here’s a detailed outline of what specifications to look for and why:

Load Size

Choosing the right used diesel generator starts with getting the sizing just right. First, calculate your facility’s electrical load, taking into account surge currents. Also, decide whether you need a generator for standby, prime, or continuous power. Remember that environmental factors like altitude and temperature can also impact performance.

Service History

Next, take a good look at the generator’s history. Generally, units with low engine hours, especially those used mainly for standby backup, tend to have more life left in them than those that are run daily as a prime power source.

Also, always check the used generator’s maintenance logs and make sure it has successfully passed a full load bank test (not just a quick startup check).

Manufacturing Brand

Brand reputation and support are important, too. Look for manufacturers like Caterpillar, Cummins, and Kohler. These brands are great choices because they offer an available stock of reliable parts.

Fuel Supply

You’ll also want to ensure that the generator’s fuel supply logistics work for your site since diesel models require on-site storage and a solid refueling plan. If this is an issue, consider discussing it with Global Power Supply. We’ll help you find a workable fix, whether it is through a custom solution or a natural gas-powered generator.

Additional Features & Compliance

You should also consider control systems and compliance. Features like automatic start/stop, remote monitoring systems, and sound-attenuated enclosures can simplify integration and ensure reliable performance. We make sure to provide all these details in our inventory of used diesel generators, and if not, we’ll help by providing engineered solutions

Be wary of common mistakes: Don’t just go for the lowest price, and always make sure to have proper documentation and testing before committing to a power system.

Overall, the right generator for your facility should meet your load requirements, have a solid service history, come from a reputable brand, and fit smoothly into your facility’s setup.

Diesel generators’ lifespans differ depending on load cycles, maintenance records, and the operating environment. A well-maintained generator can last up to 30,000 hours, and industrial-size models tend to go even longer.

The assurance we give at Global Power Supply is that our used diesel generators all come from top industry brands like Cummins, Kohler, and Caterpillar. These generators are known for their durable construction and high efficiency. Despite being previously used, they will last.

Additionally, Global Power Supply also ensures you get excellent value by only having low-hour used diesel generators in our stock. With us, you’ll find a number of options to choose from, all with extensive life spans that are capable of acting as a backup or primary power system for your facility.

Yes, Global Power Supply buys only large commercial and industrial generators 100 kW and up. We purchase both diesel and natural gas generators, so you can offload your surplus assets or remove dated units while getting some return on your initial investment.

Talk to us about buying your generator, and we’ll start the process as soon as possible. Global Power Supply will provide the expertise to evaluate and determine the value of your generator. We will then finalize the purchase, establish proper timelines, and coordinate with you on assets and transportation.

We also offer asset recovery programs to further benefit your company and facility. These include:

• Asset Buy Backs: A simple transaction in which Global Power Supply makes a cash offer for your surplus generator sets.
• Trade-In: Once we determine the value of your generator or other power equipment, we will apply that value toward the purchase of a replacement asset from our inventory. We can also hold the value of your asset as credit toward future purchases, giving you the flexibility and value you need.
• Consignment: If you have an asset that takes time to sell or has considerable market value, we also provide a consignment program where your organization maintains ownership of the equipment while we arrange for its sale, ensuring the highest possible returns for all parties involved.

Yes, Global Power Supply also provides natural gas generators. Our inventory includes used, surplus, rebuilt, and brand-new generators, all rated for standby, prime, and continuous power systems. Additionally, we only stock the very best brands, including Hipower, Cummins, Caterpillar, Mesa Solutions, and more.

The main difference between diesel generators and natural gas generators is their fuel type and performance. Here’s a brief breakdown:

Diesel

• Diesel generators run on diesel fuel, which offers faster response times and greater reliability during extensive power outages.
• Diesel gas generators require fuel delivery and on-site fuel storage.
• Diesel generators are best suited for industrial sites with standby or primary power systems or as mobile generators for remote locations or emergencies.

Natural Gas

• Natural gas generators require a direct connection to utility gas lines, ensuring a stable fuel supply.
• Natural gas is cleaner-burning, making it preferable as a low-emission option.
• Natural gas generators are ideal for facilities that need constant, uninterrupted fuel availability for their operations to run smoothly.

These are the main differences between the two types of generators, with each having its own advantages and limitations. Whichever you feel is best for your facility, rest assured knowing Global Power Supply has a full inventory of generators for you to choose from. Browse our selection of used diesel generators above, or check out some of our natural gas generators.

Yes, in addition to generators, we also have a wide range of other critical power solutions. Our aim is to be a top full-service provider in the critical power industry. That’s why we provide new and used power systems for industrial and commercial facilities, such as:

Automatic Transfer Switches

Automatic transfer switches (ATSs) are integral to building seamless backup power systems. They automatically transfer a facility’s power source from the main utility line to a standby or backup generator.

Global Power Supply provides automatic transfer switches from the industry’s top brands. We can deliver and install these into your existing system or design custom switches to fit your precise needs.

Uninterruptible Power Supply (UPS) Systems

UPS systems use batteries to provide instant, short-term power supplies, protecting sensitive electronic equipment in the event of a sudden outage or voltage drop. They also help organizations avoid heavy costs associated with replacing damaged equipment and systems.

Mobile Battery Energy Storage (BESS) Systems

BESS systems allow companies to store excess energy in batteries, which can then be used to stabilize grid frequency and voltage. They are also useful for integrating renewable energy sources, such as solar and wind, into existing systems. Any excess energy that’s stored can be used during outages.

Maintenance Bypass equipment

Maintenance bypasses are crucial pieces of equipment that allow your technicians to shift loads to alternative power systems, allowing them to fix or replace certain systems without interrupting operations.

Fuels Tanks

On-site fuel tanks are necessary to store diesel fuel for generators that are continuously running. They reduce the need for frequent refueling and ensure longer runtimes during electrical outages.

Load Banks

A vital part of a backup power system is the load bank. These devices help technicians load test backup generators to evaluate and confirm their ability to handle various electrical loads during an emergency. Load banks operate without affecting your facility’s existing systems, ensuring you are always ready for an outage.

Our inventory boasts all the equipment necessary for a secure and resilient industrial power system. Once you’ve browsed and found your choice, contact Global Power Supply. Our sales team will give you an honest quote and any additional information you may need.