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Inventory

Diesel Generators For Sale

Inventory
Manufacture Year
Manufacture Year - slider
2000 30780
Price Range
Price Range - slider
676 182576
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With the purchase of any Skid Steer Loader you can get a brand new Dump Trailer for $12,500

Keep your jobsite operating continuously and protect your facility from unexpected grid failures with industrial-grade electrical power. At IronPower Industries, we offer a robust inventory of fully inspected used diesel generators for sale. As the core of our power equipment lineup, these heavy-duty generators deliver clean, stable voltage for everything from remote construction sites to hospital emergency backups. Whether you need a highly mobile towable unit to power jobsite trailers and tools, or a massive stationary skid-mounted generator for critical facility standby power, we have the exact kW output you need. Ensure your site is fully equipped by pairing your generator with our portable light towers and towable air compressors.

Explore Diesel Generator Brands

Browse our trusted industrial power generators by manufacturer:

Cummins | Multiquip | Atlas Copco | Generac | Kubota

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Used Diesel Generators for Sale – Reliable Prime and Standby Power

IronPower Industries provides a specialized selection of used diesel generators designed to be the uncompromising heartbeat of your operations. Unlike residential gas generators, industrial diesel engines are engineered to run under heavy loads for thousands of hours with minimal maintenance. Whether you are providing prime power to a remote oil rig or installing a life-saving standby system for a commercial data center, a dependable generator is a non-negotiable asset.

Why buy a used diesel generator?

  • Significant capital savings. High-kW industrial generators are massive investments. Purchasing a thoroughly inspected, pre-owned unit allows you to secure the exact wattage capacity you need without the severe depreciation of buying a brand-new model.
  • Proven heavy-duty engines. We stock legendary powerplants—like Cummins, John Deere, and Kubota—that are globally recognized for outlasting the equipment they are mounted in.
  • Immediate deployment. Avoid factory production backorders that can delay your construction project or leave your facility vulnerable. Our used inventory is load-tested, on the lot, and ready to be shipped or towed today.

Prime Power vs. Standby Power

It is crucial to understand the difference when selecting your generator:

Prime Power Generators (Continuous):
These generators act as the sole source of electricity. They are built to run 24/7 in remote locations without access to the utility grid, powering construction camps, mining operations, and outdoor events. They are typically towable and heavily sound-attenuated to reduce noise.

Standby Power Generators (Emergency):
These units remain off until the main utility grid fails. Used by hospitals, supermarkets, and warehouses, they are wired to an Automatic Transfer Switch (ATS) and automatically turn on to keep critical systems running. They are usually stationary, mounted on large fuel-tank skids.

What to consider before you buy

Calculating your kW (Kilowatt) / kVA needs:
Never guess your power requirements. You must calculate the starting wattage (surge) and running wattage of all the motors, pumps, and tools you intend to run simultaneously. Buying an undersized generator will cause breakers to trip and can damage sensitive equipment, while buying a massively oversized unit leads to inefficient fuel consumption and “wet stacking” in diesel engines.

Voltage capabilities:
Ensure the generator features a voltage selector switch (common on towable units) allowing you to switch between single-phase (120/240V) for standard tools and three-phase (208V, 240V, or 480V) for heavy industrial machinery.

Popular diesel generator brands

Our inventory features the absolute titans of the power generation industry. Cummins is universally recognized for producing the most reliable heavy-duty engines in the world. For mobile, whisper-quiet prime power, Multiquip (MQ Power) and Atlas Copco are the undisputed leaders on North American jobsites. We also heavily stock Generac for dependable stationary standby solutions.

How we inspect used diesel generators

An unreliable generator is worthless. To ensure you receive a machine capable of carrying its rated load, every generator listed by IronPower Industries undergoes a rigorous, specialized inspection:

  • Load Bank Testing: This is the ultimate test of a generator. We connect the unit to an artificial electrical load to verify the alternator can produce its maximum rated kW output continuously without overheating or experiencing voltage drops.
  • Engine Health: We verify cold starts, inspect fuel injectors, check the cooling systems, and test exhaust emissions to ensure there is no unburned fuel (wet stacking).
  • Electrical Components: Inspecting the control panel, voltage regulator (AVR), and main breaker for flawless operation.
  • Trailer and Fuel Tank: For mobile units, we check the DOT lighting, axle health, and ensure the onboard fuel tank (often a double-walled environmental tank) is free of leaks and algae buildup.

Diesel Generators for Sale in Florida and Nationwide

IronPower Industries proudly supplies diesel generators for sale in Florida and across the United States. With our primary facility located in Hialeah, contractors and facility managers in Miami, Fort Lauderdale, Orlando, and Jacksonville have immediate access to emergency and prime power. We routinely coordinate domestic flatbed freight and international export to ensure your generator arrives ready to power up your site.

Frequently Asked Questions About Diesel Generators

What size (kW) generator do I need for my jobsite?

Generator sizing depends entirely on the combined wattage of the equipment you need to run simultaneously. You must account for both the “running watts” and the “starting watts” (surge watts), as heavy electric motors (like those on air compressors or large pumps) require up to three times their running wattage just to start up. We highly recommend consulting with an electrician to calculate your exact load before purchasing.

What is generator load bank testing?

A load bank test involves connecting the generator to a machine that provides a simulated, adjustable electrical load. It forces the generator to work at its maximum rated capacity for a sustained period. This verifies that the engine, cooling system, and alternator can handle heavy, real-world demands without failing or overheating.

What does “sound attenuated” mean?

Industrial diesel engines are incredibly loud. A “sound-attenuated” generator is enclosed in a specially designed, weather-proof steel or aluminum housing lined with heavy acoustic foam. This drastically reduces the decibel (dB) levels, allowing the generator to run quietly on movie sets, outdoor events, or in residential neighborhoods without violating noise ordinances.

Can I finance a used diesel generator?

Yes. Securing reliable power is critical, and high-capacity generators are significant investments. IronPower Industries offers flexible equipment financing options tailored to help construction companies, hospitals, and commercial facilities acquire the power they need while maintaining healthy working capital.

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