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Caterpillar XQ500/600 – 500-600 kW Diesel Power Module

The XQ500/600 Power Module is a series of mobile power units, full-featured and ready to deploy anywhere you would use an industrial-strength generator. They boast expertly rebuilt Cat engines, giving them highly sought Tier 1 status, with simple maintenance and easy operation at a fraction of the cost of new equipment.

XQ500/600 Power Modules are in stock and ready to ship now, as well as available for rent. So maximize ROI, delay expensive replacements, and maintain availability within your fleet by picking up one of these versatile units today.


Fast Lead Times—Browse Our Inventory

Welcome to Worldwide Power Products’ home for generators in the 250 kW range. Large enough to be used for heavy-duty standby power or as all-purpose prime power for daily operations, a generator in this range is an excellent investment in your business’ defenses against power outages and high utility costs. 

Our inventory of 250kW generators includes both new and used models in both diesel and natural gas from a variety of leading manufacturers. You’re sure to find the unit that fits your needs for location, application, price, and maintenance considerations.

Capable of supporting large office buildings and factories running heavy industrial machines, a 400 kW generator has the power you’re looking for. And Worldwide Power Products has the right model for you, whether diesel or natural gas, standby or prime.

We stock a huge inventory of generators in the 400 kW range from leading manufacturers such as Kohler, HIPOWER, Caterpillar, and Cummins. With some of the fastest lead times in the industry, we can connect you with a new or used genset quickly so you can protect your operations from outages. 

Protect your business from power outages or deliver power far from the grid with a generator in the 500 kW range from Worldwide Power Products. We have a large inventory of diesel and natural gas generators from the world’s best-known brands with lighting-fast lead times.

Our 500 kW class generators are available in both new and used condition for the most cost-effective solution for your budget. Search for yours below and contact us today for more details.

It takes serious power to electrify a hospital, factory, shopping center, or treatment plant. For these and other tough jobs, count on a 1MW+ generator from Worldwide Power Products. 

We offer heavy-duty generators in both diesel and natural gas so you can find a power solution for virtually any environment and any application. Explore our inventory below and contact us today for more information.

With a 2000kW generator, you’re prepared to tackle a wide range of off-grid applications.

Worldwide Power Products is one of America’s leading generator retailers, with a huge inventory of new and used diesel and natural gas gensets in a wide range of major brands such as Caterpillar and Cummins. We’re also an invaluable provider of power generation rentals and services, trusted throughout the Gulf Coast for our fast response times and knowledgeable team.

Designed to support demanding power applications, a 1600kW generator from Worldwide Power Products offers reliable performance for various industries and operations.

Worldwide Power Products offers an extensive selection of diesel and natural gas generators in this size range. Our inventory includes new and pre-owned options featuring trusted brands like Caterpillar, Cummins, and HiPower. WPP’s experienced team is here to assist you in finding the right generator for your specific needs.

A 1.25MW generator provides robust power for a wide variety of needs, whether for emergency use or continuous operation.

At Worldwide Power Products, we maintain a large inventory of both diesel and natural gas generators in this size rating. We offer custom portable and stationary solutions. Among our stock you’ll find new and pre-owned units and major brand name equipment such as Caterpillar, Cummins, and HiPower.

Our inventory in the 800kW range includes new and pre-owned options featuring trusted brands like Caterpillar, Cummins, HiPower, Gillette and IGSA.

Below you’ll find Worldwide Power Products’ continually replenishing inventory of new and used 800kW diesel and natural gas generators. We offer custom portable and stationary solutions. Our team rapidly responds to pricing and other questions and can help get the best generator ordered and on its way to you as soon as possible.

A 600kW generator offers reliable backup power for a range of applications and is available in various new and used options from Worldwide Power Products. Our inventory features trusted brands like Caterpillar, Cummins, and HiPower. 

We offer custom portable and stationary power solutions. We pride ourselves on our fast lead times that move as fast as your business. Call us today for pricing questions or any assistance with sizing or selecting a generator–our expert team is standing by.

A 100kW generator is a versatile option for handling smaller loads in various settings. Diesel models often run more efficiently and last longer, while natural gas models are valued for their quieter operation and lower emissions.

At Worldwide Power Products, we offer both fuel types in our large inventory, both new and used. We’re happy to help you select the right one for your application, budget, space, and other factors. Call us today for help from our experienced sales team.

A 60kW generator can supply power to a variety of equipment while maintaining a smaller footprint than larger units, making it suitable for spaces with tight clearances.

Worldwide Power Products’ inventory of 60kW generators includes new and used diesel and natural gas generators.Our team is standing by to assist with pricing and any other questions. With some of the best turnaround times in the industry, we can get you set up with a 60kW generator quickly.

40kW generators offer a balance of power and flexibility and are a common size in both commercial and large residential applications.

Call us today to speak to one of our experienced sales pros to learn whether a diesel or natural gas 40kW generator is right for your application. Our large inventory includes both new and used units.

Take advantage of the latest power generation technology the industry has to offer with a new generator from Worldwide Power Products. A zero-hour, manufacturer warranty-backed, name-brand generator from WPP will last for years with correct maintenance, supplying backup, prime, or continuous power whenever and wherever you need it. 

We offer diesel and natural gas gensets from the most respected names in the industry such as Cummins, Kohler, HIPOWER, and more. Use the tool below to sort by manufacturer, size range, fuel type, and/or portability. 

Find the standby, prime, or continuous power solution you need among Worldwide Power Products’ used generator inventory. We thoroughly inspect and test each piece of pre-owned equipment before clearing it for sale so you know you’re getting a dependable product. 

Use the search tool below to sort our extensive inventory by manufacturer, generator size, fuel type, and more and get a high-quality genset for a fraction of the cost of a new model.

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Questions? Contact our Power System Specialists

Dave Vennie - VP of Sales & Engineering

Dave Vennie

VP of Sales & Engineering


Innovative Features for Top Performance

WPP Power Modules are designed with industrial operators, utilities, and other power users in mind. Their intelligent, purpose-driven design includes EPA Tier 1 compliance with regulations governing refurbished engines, making them less expensive and easier to maintain than higher tiers.

While also being fully customizable, the 500/600 Series offers benefits such as:

Advanced Controls

Utility and island mode paralleling, system integration, remote monitoring, and support for utility breaker control

State of the Art Smart Buss Distribution

Smart lugs to allow for bare cable, lugs, or camlocks

Exhaust Systems Over the Radiators

No more holes in roofs or rain caps to worry about water getting in the engine

Advanced Fuel Pump System

1HP 240V pump for external fuel supply controlled through the generator controls system


Industry-Leading Support Comes Standard

We warranty our XQ500/600 Power Modules for materials and workmanship and back them with the same high quality of technical support we’re known for.

If you already have a fleet of generators or power modules, we can also conduct a fleet assessment and refurbish any engines you desire to help them last as long as possible.

Already own a CAT module? Inquire about our trade-in, recondition, or refurbishment options.


Download Cat XQ500/600 Spec Sheet

Use the link below to view the specifications for the 500/600 Series.

Download XQ500/600 Specifications


Industries & Applications We Serve

Generator Rental Companies

Enhance your standard generator package with an XQ Power Module that delivers exceptional value through its advanced features and benefits.

Utilities

Keep pumps, treatment plants, and control systems running smoothly during grid failures and natural disasters with a WPP Power Module.

HVAC

The XQ500/600 Series enables uninterrupted cooling and heating, helping maintain safe, reliable conditions for people and equipment in data centers, hospitals, and other temperature-sensitive environments.

Construction

WPP Power Modules deliver even on the toughest construction sites, powering everything from office trailers to concrete mixers and cranes.

Quarry/Rock Operations

Dig deep with energy supplied by the XQ500/600 Series, with enough dependable power for excavating, crushing, drilling, and other tough tasks.

Cold Storage/Food Distribution

Prevent product loss due to power interruptions by keeping temperatures stable with the fast startup and intelligent load management of an XQ500/600.


How Our Power Modules Stack Up Against Factory-New Cat Units

The XQ500/600 offers several benefits to rival units fresh off the factory floor, such as…

  • The dependable Cat 3516 platform
  • Speedy deployment and prompt ROI
  • Fast lead times
  • Easy care and maintenance routines
  • Minimal initial investment needed

XQ500/600 FAQs

Refurbished modules allow dealers to keep high-hour units earning revenue instead of sidelined in the yard. WPP rebuilds and packages modules with new or reconditioned components, so you get reliable performance without the expense of Tier 4 Final systems. For dealers, that means stronger utilization rates, fewer gaps in the rental fleet, and more time before major capital outlay is required.

The introduction of Tier 4 Final emissions standards changed everything in the mobile power market. These systems add complexity, higher upfront cost, and more expensive maintenance. Non-Tier 4 Final refurbished modules provide a cost-effective alternative—especially for low-load rental applications—without the downtime and headaches that often come with aftertreatment systems.

Most packagers require 9–12 months or more to deliver a new module. WPP’s inventory is in stock and ready to move—typically under 4 months. That means you can respond to seasonal demand spikes, fleet gaps, or customer emergencies faster.

We offer modules from 500–2000 kW, packaged in 20–40 ft ISO containers. Whether you need a 500 kW unit for pipeline projects or a 2 MW module for peak-shaving and utility support, we can size your solution to match your rental strategy.

Yes. WPP’s modules are designed with utility and island mode paralleling, smart buss distribution, and advanced controls. They integrate seamlessly into mixed fleets, including CAT dealer fleets, so you can deploy them without extra infrastructure or control headaches.

Our modules are built for ease of use in the field:

  • Smart Buss Distribution with multiple connection options (camlocks, lugs, bare cable)
  • Over-the-radiator exhaust (no roof penetrations or rain caps required)
  • Built-in fuel pump system for easy external fuel supply
  • Service-friendly layouts that simplify maintenance and shorten turnaround times

 

  • Lower upfront investment compared to Tier 4 Final units
  • Reduced maintenance complexity and downtime
  • Faster deployment = more billable hours
  • Extended useful life of rental fleets without major capex

 

Yes. All refurbished units meet EPA compliance standards for their class. WPP ensures emissions compliance while still delivering the performance and simplicity rental fleets demand.

Yes. WPP works with CAT dealers to refurbish, recondition, or trade in existing modules. We help you maximize ROI on aging assets and keep your rental fleet competitive.

Rental demand often spikes during hurricane season, utility outages, or industrial shutdowns. Having ready-to-deploy refurbished modules gives you faster response, higher utilization, and better margins without tying up capital in brand-new Tier 4 units that may sit idle.


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How Can We Help?

Our team is standing by to assist you in selecting the best power generation solution for your needs.

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