For facilities with pipeline natural gas and substantial backup-power requirements, the used Cummins 880GFLC natural gas generator (CSDG# 5070) offers a high-capacity option in a complete, enclosed package. This 2008 generator is listed at 880 kW standby, has 660 operating hours, and is offered for $229,900 FOB Katy, Texas.
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It’s powered by Cummins’ GTA50-G3 natural gas engine and includes PowerCommand digital controls, a 1,200-amp main-line circuit breaker, and a sound-attenuated enclosure. The load test is pending, so prospective buyers should request an update and review the results before making a purchase decision.
Cummins: an established name in industrial power
Cummins is a global engine and power-generation manufacturer with decades of experience supplying equipment for commercial and industrial applications. Its reputation is built on a broad product range, established service and parts networks, and experience designing engines and generator sets for demanding duty.
That company-wide reputation is useful context, but it should not replace a condition assessment of any used generator. The service history, installation requirements, fuel supply, and test results for the specific unit matter. For CSDG# 5070, the listing reports 660 hours and identifies the package and engine models; a load test remains pending.
Cummins’ GTA50 lean-burn gas series reflects the company’s experience with large natural gas engines. The GTA50 platform pairs heavy-duty construction with spark-ignited, lean-burn combustion for applications where dependable gas-fired power is needed.
GTA50-G3: 50-liter-class natural gas power
The GTA50-G3 is a large-displacement, V16 natural gas engine in the 50-liter class. It is rated at 1,334 horsepower at 1,800 RPM in this generator package. The engine’s scale and configuration are designed to support the generator’s advertised 880 kW standby rating.
The GTA50 belongs to the same broad heavy-duty 50-liter engine family associated with Cummins’ proven large industrial platforms. Its gas-specific design uses lean-burn technology: operating with excess air in the combustion mixture. Lean-burn engineering can help manage emissions and fuel use, while turbocharging and aftercooling support power output. Actual performance depends on the complete generator configuration, fuel quality, site conditions, and maintenance.
Cummins’ published GTA50 specifications provide additional engine-family context, but ratings vary by model and configuration. For this unit, rely on the 880GFLC package rating listed by Central States Diesel Generators, and verify the nameplate and documentation for the exact unit during due diligence. Do not assume a prime rating; one is not advertised for CSDG# 5070.
What natural gas can offer
A natural gas standby generator may make sense when a facility has a suitable, dependable gas connection. Compared with stored liquid fuel, pipeline supply can reduce the need for on-site refueling logistics during an outage. Natural gas may also offer a fuel-cost advantage where local pricing is favorable, and it burns cleaner than diesel in several respects.
Those benefits depend on the site. Pipeline pressure and capacity must meet the engine’s requirements during operation, and the gas supply itself remains a dependency. Fuel pricing varies by region and over time, so compare expected operating costs using local utility rates and the facility’s projected runtime. EPA certification is noted for this generator; confirm that the certification and configuration match the intended installation and applicable permitting requirements.
Biogas or landfill gas can be an option for some gas-engine applications, but it should not be assumed that a standard pipeline-natural-gas set can use any alternate fuel without changes. Non-pipeline gas composition must be analyzed, and suitability should be confirmed with the engine manufacturer and qualified project engineers.
For a closer look at the tradeoffs, see our guide to diesel versus natural gas generators.
Package details for CSDG# 5070
The 880GFLC is rated at 880 kW standby and configured for three-phase, 60 Hz, 277/480V output. Its 12-lead reconnectable alternator allows connection to other voltages, subject to the equipment configuration and the requirements of the installation.
The package also includes:
- 1,200-amp main-line circuit breaker
- PowerCommand digital control panel
- Battery charger and coolant heater
- Sound-attenuated enclosure with critical-grade silencer
- EPA-certified designation, as listed for this unit
The enclosure helps reduce operating noise and provides a weather-protective package, while the silencer is part of the exhaust system. Installation still requires proper clearances, ventilation, exhaust routing, gas piping, electrical integration, and code review.
The unit is listed at 55,000 pounds, with dimensions of 120 inches wide × 444 inches long × 164 inches high. Given its scale, plan for transport, rigging, access, and foundation requirements early. The generator is located in Katy, Texas, and the sale is FOB Katy, TX.
Low listed hours, paired with a pending load test
At 660 hours, this 2008 generator has low listed operating hours for a large industrial unit. Hours are one useful data point, but they do not establish condition on their own. Long periods out of service, maintenance practices, storage conditions, and previous loading can all affect equipment health.
Because the load test is pending, buyers should request the completed test report when available and confirm the test conditions and results. It’s also prudent to review available service records, controller history, emissions documentation, engine and alternator condition, and gas requirements. A site engineer or qualified generator technician can help determine whether the set’s rating, voltage, fuel supply, and enclosure suit the project.
Other Cummins natural gas generators in stock
CSDG# 5070 is not the only natural gas option at Central States Diesel Generators. We own the equipment we advertise, and our current inventory includes other Cummins natural gas generators, including the 625GFJB and 750GFLB. Availability can change, so check the listings for current status and details. We can arrange nationwide shipping and help buyers compare ratings, voltage, fuel requirements, and package features.
Browse our used Cummins natural gas generators, explore the broader generator inventory, or review Cummins generator listings.
Request details or a quote
The Cummins 880GFLC GTA50-G3 is a substantial 880 kW generator for facilities evaluating a gas standby generator or industrial backup power solution where pipeline natural gas is available. Its low listed hours, enclosed package, and included controls make it worth reviewing, while the pending load test and site-specific installation requirements deserve careful attention.
Whether you’re searching for a natural gas generator for sale or a used Cummins natural gas generator, we can help you assess the available options and identify the information needed to make an informed purchase.
