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Industrial Trailer-Mounted Generators
Turnkey Industries carries industrial trailer-mounted generators to make your worksite more flexible. Not all generators are built the same; trailer-mounted units provide convenient mobility thanks to trailer integration. You can attach the trailer-mounted units to a vehicle to move precisely where you need them quickly and securely, giving you ample control over the generator and the ability to make adjustments on the fly.
Plus, you don’t have to compromise on finding a reliable manufacturer — we carry industrial trailer-mounted generators from many quality providers, including Caterpillar, Multiquip, Airman, and more. So who has your ideal industrial generator for power supply? Whether you have a personal favorite or you’re following a recommendation, we likely have the heavy-duty trailer generator you’re looking for available above.
Unlock mobile power solutions with our cutting-edge 500 kW trailer-mounted generator. Engineered for versatility and convenience, this portable powerhouse ensures seamless deployment for various applications. With robust construction and efficient performance, our trailer-mounted generators offer a reliable source of power wherever you need it — used or new. Even when you choose one of our used pull-behind generators, you should expect the same quality and consistent performance, whether it’s supporting a construction site, a medical facility, or another operation entirely.
What Makes a Generator “Trailer-Mounted”
A trailer-mounted generator is built onto its own axle and hitch assembly rather than a stationary skid or enclosure pad. That integration is what allows the unit to be towed behind a truck and repositioned as job requirements change, without the cost or downtime of a crane pick or permanent foundation work.
Common Applications for Trailer-Mounted Generators
Mobility is the whole point of a trailer-mounted unit, which is why they show up across such a wide range of industries. On construction sites, they move from phase to phase as power needs shift across a jobsite. In oil and gas operations, they support wellsites and temporary compression needs where permanent infrastructure isn’t practical. Rental companies favor them for the same reason — one unit can serve multiple job sites without a permanent install. They’re also a common fit for agricultural operations that need seasonal or rotating power across different fields or equipment, and for rock crushing and mining operations where the power source has to follow the work.
Trailer-Mounted vs. Standby: Which Fits Your Operation
If your power needs are fixed rather than mobile — a facility that draws from the same location every time — a standby generator is usually the better long-term investment. Trailer-mounted units earn their keep when the job moves.
| Factor | Trailer-Mounted | Standby |
|---|---|---|
| Best for | Jobsites and temporary power needs that relocate | Fixed facilities with a permanent power draw point |
| Installation | None required — tow and connect | Permanent pad and electrical tie-in |
| Mobility | Full — move between sites as needed | None — stays at one location |
| Typical users | Construction, oil & gas, rental fleets, agriculture | Hospitals, data centers, manufacturing plants |
Trailer-Mounted Generator Sizes We Carry
Our trailer-mounted inventory spans a wide capacity range, so sizing depends on what you’re running. Smaller trailer units in the 25kW-99kW range are common for tool power, lighting, and smaller equipment on a jobsite. Mid-size units between 100kW and 499kW handle larger equipment loads and multi-trailer setups. For operations that need serious mobile capacity, our 500 kW trailer-mounted generator and similar units in the 500kW-999kW range can cover large equipment or temporary facility loads without sacrificing the ability to relocate.
Not Sure What Size You Need?
Our power calculators and generator buying guide can help you work through the math before you commit to a unit. Sizing wrong in either direction costs you — underpowered equipment stalls out, oversized equipment burns budget you didn’t need to spend.
What to Check Before You Buy
Feel free to click on any of the power generators above to find additional technical details, such as product weight, dimensions, fuel type, emissions rating, and more. The mobility of towable power generators is convenient on its own, but finding the perfect machine requires looking at the finer details:
- Trailer weight and tow rating compatibility with your existing vehicles
- Fuel type — diesel remains the standard for most trailer-mounted applications due to run time and availability on remote sites
- Emissions tier rating, especially if you’re operating in a state with stricter compliance requirements
- Hours and service history if you’re considering a used unit
The more you know about each generator, the more personalized your purchase will be. The power needs of any worksite are unique, so we want you to have the tools you need to make that decision with confidence.
Backed By The IronClad Warranty
Every trailer-mounted generator we sell — new or used — is covered by our 30-day IronClad warranty. It’s the same inspection, service, and load bank testing process we run every unit through before it’s offered for sale, regardless of whether it’s headed to a jobsite down the road or across the country.
Once you’re up and running, our service and maintenance team is available for preventative maintenance, load bank testing, and repairs to keep your mobile power reliable job after job. Check out the trailer-mounted generators available online now to find the ideal model for your professional needs, or contact us if you’d like help narrowing it down first.
Frequently Asked Questions
What size trailer-mounted generator do I need for a construction site?
It depends on the equipment running simultaneously — tools, lighting, and temporary offices typically fall in the 25kW-99kW range, while larger equipment loads push into 100kW-499kW. Use our power calculator to confirm before you buy.
Can a trailer-mounted generator be towed by any vehicle?
Not always. Trailer weight and hitch class need to match your tow vehicle’s rating, especially on larger units. Check the trailer weight listed on each unit’s product page against your vehicle’s tow capacity before committing to a purchase.
Is a used trailer-mounted generator reliable?
Yes, provided it’s been properly inspected. Every used unit we sell goes through inspection, service, and load bank testing, and is backed by the same 30-day IronClad warranty as our new inventory.
What’s the difference between a trailer-mounted and a standby generator?
Trailer-mounted units are built for mobility — they tow to wherever the job is. Standby generators are permanently installed at a fixed location and tied into a facility’s electrical system. If your power needs move with the job, trailer-mounted is almost always the better fit.
Do trailer-mounted generators run on diesel or natural gas?
The large majority run on diesel, since it offers longer run times and is more readily available on remote or temporary jobsites where natural gas hookups aren’t practical.
Does Turnkey Industries offer maintenance for trailer-mounted generators after purchase?
Yes. Our service and maintenance team supports trailer-mounted units with preventative maintenance, load bank testing, and repair service for the life of the equipment.
