Questions? Contact our Power System Specialists

Dave Vennie
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
How can refurbished power modules extend the life of my CAT rental fleet?
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.
What’s the difference between Tier 4 Final and non-Tier 4 Final power modules?
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.
How quickly can I get a power module delivered?
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.
What sizes and kW ratings are available for your power modules?
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.
Do your power modules integrate with CAT paralleling and control systems?
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.
What design features reduce downtime and make these modules rental-ready?
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
How do WPP’s power modules lower total cost of ownership for dealers?
- 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
Are your refurbished CAT power modules EPA compliant?
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.
Can I trade in or refurbish my existing CAT modules with WPP?
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.
How do power modules fit into my rental fleet strategy during peak demand seasons?
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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