Generac
Commercial and Industrial Generator Sets
Generac
Generac began in 1959 and helped create the residential standby market. That early focus on gaseous engines powered a successful expansion into commercial and industrial power. Today Generac is a total energy solutions provider.
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Spec Sheets
| Brand | Capacity | Model | Fuel Type | Spec Sheet |
|---|---|---|---|---|
| Cummins | 400kW | DFEH | Diesel | 400kW-Cummins-DFEH-Spec-Sheet.pdf |
| Cummins | 50kW | 4BT3.9 | Diesel | 4BT3.9.pdf |
| Cummins | 100kW | DGDB | Diesel | Cummins-100-DGDB_6BT5.9-G6.pdf |
| Cummins | 100kW | DSGAA | Diesel | Cummins-100-DSGAA_QSB7.pdf |
| Cummins | 100kW | GGHH | Natural Gas | Cummins-100-GGHH-Ford-V10T-6.8L.pdf |
| Cummins | 110kW | DGDK | Diesel | Cummins-110-DGDK_6BTA5.9.pdf |
| Cummins | 120kW | C130D6B | Diesel | Cummins-120-C130D6B_QSB5.pdf |
| Cummins | 125kW | DSGAB | Diesel | Cummins-125-DSGAB_QSB7.pdf |
| Cummins | 125kW | GGHJ | Natural Gas | Cummins-125-GGHJ-Ford-V10T-6.8L.pdf |
| Cummins | 1250kW | DQGAE | Diesel | Cummins-1250-DQGAE.pdf |
| Cummins | 1250kW | DQGAR | Diesel | Cummins-1250-DQGAR_QSK50.pdf |
| Cummins | 150kW | DSGAC | Diesel | Cummins-150-DSGAC_QSB7.pdf |
| Cummins | 150kW | GFPA | Natural Gas | Cummins-150-GFPA_PSI-8.8L.pdf |
| Cummins | 1500kW | DFLE | Diesel | Cummins-1500-DFLE_KTA50-G9.pdf |
| Cummins | 1500kW | DQGAB | Diesel | Cummins-1500-DQGAB_QSK50.pdf |
| Cummins | 1500kW | DQGAF | Diesel | Cummins-1500-DQGAF.pdf |
| Cummins | 1500kW | DQGAS | Diesel | Cummins-1500-DQGAS.pdf |
| Cummins | 1540kW | C1540-N6C | Natural Gas | Cummins-1540-C1540-N6C_QSV91G.pdf |
| Cummins | 1545kW | C1500-D6 | Diesel | Cummins-1545-C1500-D6KTA50.pdf |
| Cummins | 160kW | DGFA | Diesel | Cummins-160-DGFA_6CTA8.3-G2.pdf |
| Cummins | 170kW | C185D6 | Diesel | Cummins-170-C185D6_6CTA8.3.pdf |
| Cummins | 175kW | DSGAD | Diesel | Cummins-175-DSGAD_QSB7.pdf |
| Cummins | 1750kW | DQKAD | Diesel | Cummins-1750-DQKAD.pdf |
| Cummins | 200kW | DSGAE | Diesel | Cummins-200-DSGAE_QSB7.pdf |
| Cummins | 2000kW | DQKAB | Diesel | Cummins-2000-DQKAB_QSK60-G6-NR2.pdf |
| Cummins | 2000kW | DQKAE | Diesel | Cummins-2000-DQKAE.pdf |
| Cummins | 2000kW | DQKAL | Diesel | Cummins-2000-DQKAL_QSK60.pdf |
| Cummins | 2250kW | DQKAF | Diesel | Cummins-2250-DQKAF.pdf |
| Cummins | 250kW | GFBC | Natural Gas | Cummins-250-GFBC-Cert_GTA8ffe.pdf |
| Cummins | 2750kW | DQLH | Diesel | Cummins-2750-DQLH_QSK78.pdf |
| Cummins | 300kW | C300D6R | Diesel | Cummins-300-C300D6R_QSM11.pdf |
| Cummins | 300kW | DQHAB | Diesel | Cummins-300-DQHAB.pdf |
| Cummins | 350kW | DFCC | Diesel | Cummins-350-DFCC-NTA855-G3.pdf |
| Cummins | 350kW | GFEB | Natural Gas | Cummins-350-GFEB-Cert_KTA19-SLB.pdf |
| Cummins | 450kW | DFEJ | Diesel | Cummins-450-DFEJ.pdf |
| Cummins | 450kW | DFEK | Diesel | Cummins-450-DFEK.pdf |
| Cummins | 485kW | GFGA | Natural Gas | Cummins-485-GFGA_GTA28.pdf |
| Cummins | 600kW | DQCA | Diesel | Cummins-600-DQCA_QSK23.pdf |
| Cummins | 600kW | DQPAA | Diesel | Cummins-600-DQPAA.pdf |
| Cummins | 600kW | DQPAB | Diesel | Cummins-600-DQPAB.pdf |
| Cummins | 635kW | GFJB | Natural Gas | Cummins-635-GFJB_GTA38.pdf |
| Cummins | 690kW | GFJC | Natural Gas | Cummins-690-GFJC_GTA38.pdf |
| Cummins | 750kW | DFHA | Diesel | Cummins-750-DFHA.pdf |
| Cummins | 750kW | DQCB | Diesel | Cummins-750-kW-DQCB_QSK23.pdf |
| Cummins | 760kW | GFLA | Natural Gas | Cummins-760-GFLA_GTA50.pdf |
| Cummins | 800kW | DQCC | Diesel | Cummins-800-kW-DQCC_QSK23.pdf |
| Cummins | 815kW | GFLB | Natural Gas | Cummins-815-GFLB_GTA50.pdf |
| Cummins | 85kW | DGDB | Diesel | Cummins-85-DGDB.pdf |
| Cummins | 85kW | GGHG | Natural Gas | Cummins-85-GGHG.pdf |
| Cummins | 895kW | GFLC | Natural Gas | Cummins-895-GFLC_GTA50.pdf |
| Cummins | 100kW | C100D6 | Diesel | Cummins-C100D6_6BT5.9.pdf |
| Cummins | 100kW | C100N6 | Natural Gas | Cummins-C100N6_QSJ5.9G.pdf |
| Cummins | 110kW | C110D6 | Diesel | Cummins-C110D6_6BT5.9.pdf |
| Cummins | 50kW | C50-D6 | Diesel | Cummins-C50-D6_4BT3.9.pdf |
| Cummins | 65kW | C65D6 | Diesel | Cummins-C65D6_4BT3.9.pdf |
| Cummins | 70kW | C70-D5 | Diesel | Cummins-C70-D5_4BT3.9.pdf |
| Cummins | 80kW | C80-D5 | Diesel | Cummins-C80-D5_6BT5.9.pdf |
| Cummins | 85kW | DGDB | Diesel | Cummins-DGDB_6BTA5.9.pdf |
| Cummins | 200kW | DGFC | Diesel | Cummins-DGFC-Spec-Sheet-Woodstock-Power-Co..pdf |
| Cummins | 100kW | GGHF | Natural Gas | Cummins-GGHF_Ford-V10-6.8L.pdf |
| Cummins | 300kW | QSL9G9 | Diesel | Cummins-QSL9G9-Woodstock-Power.pdf |
| Cummins | 1000kW | DQFAD | Diesel | Cummins_DQFAD_QST30-G5.pdf |
| Cummins | 250kW | DSFAE | Diesel | Woodstock-Power-Co.-Cummins-DSFAE-Spec-Sheet.pdf |
| Cummins | 400kW | DFEG | Diesel | WPC-Cummins-DFEG-Spec-Sheet.pdf |
Units Available Now
Generac Generators Available Now & Ready to Ship
Showing 74 of 74 results
- More Details
Price: $160,000
Three-Phase
Fuel: Diesel
Built: 1998
Volts: 277/480v
Hours: 58
Unit #: 091552
More DetailsVoltage Selector Switch
Fuel: Diesel
Built: 2022
Volts: VOLTAGE SELECTOR SWITCH
Unit #: 090018
More DetailsPrice: $12,000
Single-Phase
Fuel: Diesel
Built: 2005
Volts: 120/240v
Hours: 944
Unit #: 089233
More DetailsPrice: $12,000
Single-Phase
Fuel: Diesel
Built: 2006
Volts: 120/240v
Hours: 859
Unit #: 089588
More DetailsPrice: $12,000
Single-Phase
Fuel: Diesel
Built: 2005
Volts: 120/240v
Hours: 996
Unit #: 089285
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Single-Phase
Fuel: Natural Gas
Built: 2017
Volts: 120/240v
Hours: 21
Unit #: 088617
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Price: $20,000
Three-Phase
Fuel: Natural Gas
Built: 2022
Volts: 120/208v
Hours: 1
Unit #: 092057
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Three-Phase
Fuel: Liquid Propane
Built: 2014
Volts: 277/480v
Hours: 125
Unit #: 089023
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Three-Phase
Fuel: Liquid Propane
Built: 2014
Volts: 277/480v
Hours: 125
Unit #: 089024
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Single-Phase
Fuel: Liquid Propane
Built: 2008
Volts: 120/240v
Hours: 450
Unit #: 089456
- More Details
Price: $8,500
Three-Phase
Fuel: Liquid Propane
Built: 2014
Volts: 277/480v
Hours: 90
Unit #: 089025
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Three-Phase
Fuel: Liquid Propane
Built: 2014
Volts: 277/480v
Hours: 49
Unit #: 089026
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Single-Phase
Fuel: Dual Fuel
Built: 2007
Volts: 120/240v
Hours: 337
Unit #: 089175
More DetailsPrice: $5,000
Single-Phase
Fuel: Liquid Propane
Built: 2008
Volts: 120/240v
Hours: 1202
Unit #: 089464
More DetailsPrice: $8,500
Three-Phase
Fuel: Liquid Propane
Built: 2011
Volts: 120/208v
Hours: 508
Unit #: 091428
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Three-Phase
Fuel: Liquid Propane
Built: 2014
Volts: 277/480v
Hours: 106
Unit #: 089014
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Single-Phase
Fuel: Liquid Propane Vapor
Built: 2009
Volts: 120/240v
Hours: 191
Unit #: 089748
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Three-Phase
Fuel: Liquid Propane
Built: 2014
Volts: 277/480v
Hours: 110
Unit #: 089020
More DetailsPrice: $5,000
Single-Phase
Fuel: Liquid Propane
Built: 1996
Volts: 120/240v
Hours: 725
Unit #: 089458
- More Details
Single-Phase
Fuel: Liquid Propane
Built: 1997
Volts: 120/240v
Hours: 424
Unit #: 089749
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Company Info
Generac: The Leader in Gaseous-Fueled and Modular Power
From Home Standby to Industrial Might: The Generac Story
Founded in 1959 by Robert Kern, Generac built its reputation by engineering the first affordable home standby generators, effectively creating the residential backup power market. This focus on accessible, reliable power laid the groundwork for a strategic and successful expansion into the commercial and industrial sectors during the 1980s.
A pivotal moment in the company’s history came in 1989, when Generac introduced the first-ever gaseous-fueled automatic home standby system. This early and deep investment in natural gas and propane engine technology became the cornerstone of their industrial strategy, positioning them as a leader in cleaner, cost-effective power solutions. Today, Generac is a total energy solutions company, offering one of the widest ranges of power products in the marketplace, from portable generators to multi-megawatt industrial installations.
Profile
Generac differentiates itself through a focus on innovative technology, scalability, and providing a strong return on investment.
The Generac Generator Portfolio
Generac Industrial Energy builds systems that generate, manage, and distribute power as one ecosystem.
- Product lines: Stationary diesel, natural gas, and factory bi-fuel generators. Modular Power Systems (MPS) for paralleling. Mobile generators, ATS, BESS, and microgrid controllers.
- Power range: About 10 kW to more than 3 MW per unit. MPS can scale to multi-megawatt solutions with built-in redundancy.
- Fuel options: Strong emphasis on natural gas and propane, with diesel and bi-fuel for sites that want gaseous economics and diesel start reliability.
Why Generac
- Gaseous engine expertise: Spark-ignited engines are designed specifically for generator duty. That means lower maintenance and cleaner operation for many applications.
- Modular Power Systems: Multiple smaller units operate as one plant. Gain N+1 or N+2 redundancy, add capacity as you grow, and service units without shutting down.
- Total energy approach: Integrate storage, controls, and on-site generation for resilience and cost control.
- Attractive TCO: Natural gas pricing, right-sized modules, and simple scaling can make the numbers work for both CapEx and OpEx.
Let’s Connect
Whether you’re curious about our current inventory, exploring rental options, or need guidance in servicing your generator, we’ve got you covered. Send us a message, and we’ll get back to you promptly.
Fill out our form or call 877-866-6895 to connect with us today!
Are Generac natural gas generators a good fit for cold climates?
Many newer Cummins diesel models are HVO-capable. We verify compatibility by model and can help with fuel commissioning and documentation.
What is a Generac Bi-Fuel generator?
Bi-Fuel runs primarily on natural gas with diesel for ignition. It combines long runtime and lower fuel costs with the starting characteristics of diesel.
Do used Generac generators come with a warranty?
Used units do not carry a new manufacturer warranty, but Generator Source offers warranty options or guarantees on select units. Ask about coverage for the specific generator you are considering.
Can Generator Source assist with installation and ongoing maintenance for a used Generac generator?
Yes. We can handle installation and connect you with our service teams for maintenance, parts, and technical support. Service locations include Austin, TX, Brighton, CO, Jacksonville, FL, and Pensacola, FL.
How do I know the condition of a used Generac generator?
Every unit receives a comprehensive 31-point inspection, including load bank testing. We share reports, photos, and often videos so you have full transparency on condition and performance.
Are replacement parts readily available for older Generac generator models?
Yes. Generac’s global parts and service network is a major advantage. Parts for most Generac engines and generator models are widely available, which supports long-term ownership.