2014 Caterpillar QX500 Generator Set: 500 kW Mobile Diesel Power

The 2014 Caterpillar QX500 generator set sits in the 500 kW class of mobile diesel generator sets. The research pack's 2014 listing uses the XQ500 name and lists 500 kW, diesel fuel, 1800 RPM, 480 volts, and 8,800 hours. That gives buyers a clear starting point, but the model name, rating, and condition still need to be confirmed against the data plate and seller records. The QX500 spelling in the target keyword and the XQ500 spelling in the listing are close enough to create confusion, so a careful review of the machine and paperwork matters before any offer.

What the 2014 Caterpillar QX500 Generator Set Delivers

The 2014 unit in the supplied listing is a mobile generator set, not a stationary-only package. It is listed as a 500 kW Caterpillar model generator set at 1800 RPM, 480 volts, 60 Hz, and 3-phase, with 8,800 hours on the unit. Those numbers describe a high-output diesel set built to supply power at a common commercial voltage. The listing also separates the 2014 XQ500 from other XQ500 units in the pack, including one with 469 hours and another with a 277/480-volt configuration. Buyers should compare the exact listing, serial number, and photograph set before treating any specification as universal. A 2014 machine with 8,800 hours has a different use history from a low-hour unit, and that difference should show up in the inspection and the records.

Key 2014 Caterpillar XQ500 Specs at a Glance

The table below summarizes what the research pack supports for the 2014 XQ500 mobile generator set. It also shows the details a buyer should confirm directly on the machine. The pack does not provide a price, a maintenance schedule, or an emissions tier for the 2014 unit, so those items should be verified with the seller and the relevant authorities.

Understanding the 500 kW Rating

The XQ500 rental specification in the pack lists two ratings: standby 500 kW and prime 455 kW, so the QX500 generates 500 kW of power in standby service while the related spec lists 455 kW at prime. That distinction matters in the field. Units in this class are used where high reliability and power density matter, and the XQ500 is designed to provide robust temporary or prime power. Standby and prime ratings are not interchangeable, and the lower prime figure shows that the set is not rated to deliver 500 kW in every duty application. A buyer who needs a continuous 500 kW supply should not assume the prime rating matches the standby number. Ask the seller which rating applies to the 2014 unit and confirm the rating on the data plate. If the proposed use calls for long running hours, match the load to the correct rating rather than the larger headline number.

Diesel Power, Fuel Efficiency, and the Cat 3412 Engine

Another XQ500 listing in the pack identifies a Cat 3412 engine rated at 749 HP at 1800 RPM, while QX500 references may instead be equipped with a Caterpillar C15 inline 6-cylinder diesel engine rated at 700 hp; the QX500 model is also described with a C-15 engine. A separate XQ500 listing shows a 277/480-volt set with the same 749 HP and 1800 RPM, plus a circuit breaker, 12-lead reconnectable generator end, and open skid. The engine may also use an ADEM A4 electronic governor for precise speed control, which is another item to verify. These are useful reference points, not proof of what is installed on the 2014 mobile unit. The 2014 listing in the pack does not name the engine, so the engine model, generator end, breaker configuration, and reconnectable leads must be verified on the specific machine. Comparing data across similar listings from different sellers, including dealers focused on generators and engines, can help narrow down what to confirm. Photos of the engine data plate and generator end tag are worth requesting before a long trip to inspect the set.

Mobile Generator Set, Fuel Tank, and Trailer Package

The 2014 XQ500 is a heavy-duty mobile diesel generator set. Caterpillar XQ Power Module trailers are described in the pack as purpose-built units engineered with robust construction, precise dimensions, and professional-grade features for safe use. These trailer-mounted units are built for easy transport and may weigh roughly 27,000 to 35,000 pounds depending on configuration. For a used mobile set, the trailer and enclosure deserve the same attention as the engine. Check the hitch, frame, axles, lights, doors, panels, and tie-down points. Confirm that the trailer rating and configuration match the generator package. Do not assume that every XQ500 listing includes the same trailer or enclosure. Some listings in the pack are open skid units, while the 2014 listing is a mobile generator set, so the package type is a key part of the comparison. Its enclosure is designed for sound attenuation and weather resistance, with rental-grade durability built to withstand frequent transport and demanding jobsite use.

Control Panel and Power Management

A related XQ500 rental document in the pack lists an EMCP 4.4 local control panel with voltage regulation and power factor control circuitry, metering, and protective relaying. That panel package is a practical area to inspect on a used set. Confirm that metering and protective functions work, and ask for the panel model and settings. The 2014 listing in the pack does not spell out the control panel model, so the panel on the specific unit should be checked rather than assumed from another listing. A control panel that has been exposed to weather, vibration, or poor storage can create costly trouble even when the engine starts and runs.

Hours, Condition, and Inspection Points

The 2014 XQ500 listing shows 8,800 hours, and buyers should compare fuel consumption figures where available, including about 35.9 gallons per hour at peak load and roughly 24 hours of runtime at 75% load. Hours are a usage indicator, not a complete condition report. Request service records, ask about recent maintenance, and because this is a 2014 model, inspect wear and maintenance history carefully while checking for leaks, wiring condition, coolant and oil condition, and enclosure damage. A load test is a useful part of due diligence because it shows how the set behaves under demand. The pack includes a load test walkthrough for a different Caterpillar unit, so use that only as a process reference. The research pack does not give a maintenance interval or a maximum acceptable hour limit for the 2014 XQ500. Buyers should also check the hour meter against the paperwork and look for signs that the set sat idle for long periods.

What Buyers Should Verify on a 2014 Caterpillar QX500

A used generator set can look clean and still carry expensive surprises, especially for construction, events, and disaster recovery. The checklist below focuses on the facts that matter most for a 2014 XQ500 mobile unit. Use the research pack as a starting point, then confirm each item on the machine and in the seller's records.

• Confirm the model name on the data plate. The pack's 2014 listing uses XQ500 while the target keyword uses QX500.

• Confirm the 500 kW standby rating and the 455 kW prime rating if the unit follows the XQ500 rental specification in the pack.

• Confirm 480 volts and the actual reconnectable configuration.

• Confirm 1800 RPM and the engine model. Other XQ500 listings show a Cat 3412 at 749 HP.

• Confirm 8,800 hours against the hour meter and service records.

• Check the control panel model, metering, and protective settings.

• Inspect the trailer, enclosure, circuit breaker, generator end, and fuel tank; confirm a dual-wall design and check its condition.

• Verify EPA Tier 4 Interim as the stated emissions spec, and confirm whether california jobs require matching carb documentation because the pack does not state if the 2014 unit is tier 4.

QX500 and XQ500 Naming

The research pack's 2014 listing uses the XQ500 name. The target keyword uses QX500. Similar letters can be transposed in listings, search terms, and data plates. Before making an offer, compare the model name on the machine, the serial number, and the seller's paperwork. If a listing calls the unit a QX500 but the photos and data plate show XQ500, ask the seller to explain the difference in writing. That simple check protects both the buyer and the seller. It also keeps the search focused on the actual machine rather than a mistyped model name. Documentation should match the iron, and any mismatch deserves a clear answer before money changes hands.

Selling or Listing a Used Unit

For sellers, a used generator set listing should make the facts easy to verify when the unit is offered for sale. Include the year, model name, serial number, rated output, voltage, speed, fuel type, hours, control panel, engine model, generator end, trailer details, and location when available. Add clear photos of the data plate, hour meter, control panel, engine compartment, breaker, and trailer. State whether the rating is standby or prime. Asking prices can vary, with one Caterpillar QX500 listed at $149,000 and another 500 kW Caterpillar generator at $185,000. If a specification is unknown, say so instead of filling the gap. That approach helps serious buyers compare the unit against other XQ500 listings and reduces back-and-forth questions. A marketplace listing on Ironmartonline can help sellers present complete information and secure buyer attention from used equipment buyers who are already comparing models and condition.

Frequently Asked Questions

What is the 2014 Caterpillar QX500 generator set?

The research pack identifies the 2014 unit as a Caterpillar XQ500 mobile generator set rated at 500 kW, 480 volts, and 1800 RPM, with 8,800 hours and diesel fuel. The QX500 spelling in the keyword should be checked against the data plate and seller listing because the supplied 2014 listing uses XQ500.

Is the Caterpillar QX500 a 500 kW generator?

The XQ500 listing in the pack is rated at 500 kW, and a related XQ500 rental specification lists 500 kW standby with 455 kW prime. Treat those as two different ratings. Confirm which rating applies to the specific 2014 unit and do not assume the prime rating matches the standby number.

How many hours are on the 2014 XQ500 in the pack?

The 2014 XQ500 listing shows 8,800 hours. Hours alone do not prove condition. Ask for service records, inspect the engine and enclosure, check the hour meter against paperwork, and request a load test. The pack does not provide a universal maximum hour limit for this model.

What should I check before buying a used XQ500?

Confirm the model name, serial number, year, 500 kW rating, 480-volt configuration, 1800 RPM speed, and 8,800-hour reading. Inspect the engine, generator end, breaker, control panel, trailer, and enclosure. Ask for maintenance records and a load test. Verify emissions tier and local requirements with the seller and authorities because the pack does not state them for the 2014 unit.