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Power Generation Enterprises maintains one of the largest pre-owned Cummins generator inventories in North America — over 430 units spanning diesel and natural gas platforms from 20kW to 2,750kW. Our Cummins inventory covers the most sought-after engine families: KTA19, KTA38, KTA50, QST30, QSK60, and QSK78. Pricing ranges from $19,000 to $225,000 for listed units, with hundreds of additional units priced on request.
Cummins generators are the preferred choice when parts availability and nationwide service network matter. The QSK60 and QSK78 power the largest data centers and industrial campuses in the country; the KTA50 is a proven prime power engine deployed globally in mining, oil & gas, and remote infrastructure; and the QST30 hits an ideal balance of power density and fuel efficiency in the 1,000–1,125kW class. Every Cummins unit at Power Generation Enterprises has been evaluated by our technical team at our Santa Clarita facility before listing.
Diesel and natural gas options available. Cummins leads the market in dual-fuel and natural gas generator sets, offering GTA855, GTA1710, and GQNNA platforms for facilities with gas utility access. We stock both engine configurations and can advise on regulatory compliance for California CARB and EPA Tier 4 requirements.
Compare Caterpillar vs Cummins if you're evaluating both platforms. Contact our team at (818) 484-8550 or request a quote for current availability, export pricing, and volume purchase options.
| Model | Power Output | Fuel Type | Price Range |
|---|---|---|---|
| Cummins KTA19 | 350–500kW | Diesel | $35K–$80K |
| Cummins KTA50 | 1,000–1,250kW | Diesel | $90K–$175K |
| Cummins QST30 | 1,000–1,125kW | Diesel | $95K–$165K |
| Cummins QSK60 | 1,500–2,000kW | Diesel | $150K–$250K |
| Cummins QSK78 | 2,000–2,750kW | Diesel | $225K–$400K+ |
| Cummins GTA855 | 300–500kW | Natural Gas | $45K–$95K |
Cummins Inc. has manufactured diesel and gas engines since 1919, building a global reputation for reliability across commercial trucking, marine, and power generation applications. The Cummins K-series (KTA19, KTA38, KTA50) and QSK-series (QSK60, QSK78) engines define the large-scale stationary power market, with thousands deployed in data centers, hospitals, and industrial facilities worldwide. Cummins has also led development of natural gas and dual-fuel generator technology, offering the GTA and GQNNA series for facilities with gas utility access. Parts availability and a nationwide service network make Cummins one of the lowest total-cost-of-ownership generator platforms in the industry.
The QSK60 and QSK78 engines power the world's largest data centers and industrial facilities, delivering 1,500-2,750kW from a single, proven platform.
Fleetguard/Cummins filters and genuine Cummins parts are available through 600+ North American service locations and a massive independent aftermarket network.
Cummins PowerCommand is the industry standard for data center generator control and paralleling, compatible with virtually all building automation and monitoring platforms.
Cummins offers a comprehensive natural gas generator range (300kW-2,000kW+), an essential option for California and other markets with diesel emissions restrictions.
Cummins QSK60 and QSK78 Tier 4 Final generators meet EPA and CARB standards using factory-integrated SCR after-treatment technology.
The most extensive generator service network in North America — Cummins service is available within driving distance of virtually every major U.S. metro area.
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Top 10 Cummins Generators for Sale in 2025Used Cummins generator prices range from $19,000 for KTA19 units (350-500kW) to $225,000+ for QSK60 and QSK78 packages in the 1,500-2,750kW range. Mid-range KTA50 and QST30 sets (1,000-1,250kW) typically run $90,000-$175,000. Power Generation Enterprises stocks 430+ Cummins units — call (818) 484-8550 for current pricing.
For standby under 1,000kW, the KTA19 and KTA38 are proven workhorses. For 1,000-1,250kW standby, the QST30 offers the best power density. For large standby installations (1,500kW+), the QSK60 is the industry standard — widely deployed in data centers, hospitals, and mission-critical facilities nationwide.
Yes. Cummins offers the GTA855, GTA1710, and GQNNA series natural gas generator platforms covering 300kW to 2,000kW+. These are widely deployed in commercial buildings and hospitals where natural gas utility access makes diesel impractical or where emissions regulations restrict diesel use. Power Generation Enterprises stocks both diesel and natural gas Cummins units.
The QSK60 produces 1,500-2,000kW and is the most widely deployed large Cummins generator engine. The QSK78 produces 2,000-2,750kW, used for the highest-demand data center and industrial applications. Both are Tier 4 Final capable. The QSK60 has a larger installed base and broader parts availability; the QSK78 offers higher output from a single engine, reducing equipment count in large installations.
The QSK60 (1,500-2,000kW) is the most commonly specified Cummins engine for data center standby power. For hyperscale deployments, the QSK78 (2,000-2,750kW) reduces the total generator count. Both support paralleling for N+1 or 2N configurations. Cummins PowerCommand control is widely used in data center generator management systems.
Yes. Cummins offers Tier 4 Final versions of the QSK60 and QSK78 for EPA and CARB compliance using a Selective Catalytic Reduction (SCR) after-treatment system requiring DEF. Contact Power Generation Enterprises for current Tier 4 Cummins inventory availability.
Cummins KTA and QSK engines are designed for 30,000-40,000+ hour overhaul intervals in standby applications. The QSK78 has documented prime power service lives exceeding 100,000 hours in mining and industrial applications. Adherence to Cummins maintenance schedules and use of Fleetguard filters are critical to achieving rated service life.
Yes. Power Generation Enterprises offers financing on all Cummins generator purchases. We work with equipment lenders who understand the industrial generator market and can accommodate both small and large transactions. Contact us at (818) 484-8550.
Both are top-tier industrial generator brands with comparable reliability. Cummins typically has a larger parts aftermarket and competitive pricing in the 1,500kW+ range. Caterpillar commands higher resale values and has a broader dealer network in remote markets. Fleet standardization and local service availability are usually more important factors than brand preference.
Cummins generators require oil and filter changes every 250-500 hours, coolant analysis annually, annual load bank testing, and injector service at major intervals (typically every 6,000-12,000 hours). Tier 4 units require DEF system maintenance. Cummins recommends Fleetguard filters and Cummins-spec fluids.
With 430+ Cummins units in stock, we can match virtually any power requirement. Our team responds to quotes within 2 hours. Call (818) 484-8550 or request a quote online.
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