Comparing Major Generator Brands
Caterpillar, Cummins, Generac, Rehlko (formerly Kohler), MTU & Multiquip
| Brand (click to open) | Key Industries | Key Differentiators | Primary Fuel | Available Units | Spec Sheets |
|---|---|---|---|---|---|
 | Construction, Mining, Oil & Gas, Data Centers, Utilities | Rugged Durability & Global Support: Renowned for withstanding harsh environments with an extensive global dealer network for service. | Diesel, Natural Gas, Bi-Fuel | Spec Sheets | |
 | Data Centers, Healthcare, Manufacturing, Commercial Buildings | Integrated Power Systems: All major components (engine, alternator, controls) are designed and built by Cummins for seamless integration. | Diesel, Natural Gas, Propane | Spec Sheets | |
 | Ag & Farming, Commercial, Construction, Telecom | Scalability & Diverse Fuel Options: Offers a wide range of modular power systems with a strong focus on natural gas and bi-fuel options. | Natural Gas, Diesel, Propane, Bi-Fuel | Spec Sheets | |
 | Construction, Healthcare, Data Centers, Marine, Hospitality | Customization & Advanced Controls: Known for highly customized, mission-critical solutions with advanced digital controls and paralleling switchgear. | Diesel, Natural Gas | Spec Sheets | |
 | Data Centers, Healthcare, Airports, Marine | High-Performance & Power Density: A Rolls-Royce brand known for precision engineering, high power density, fuel efficiency, and low emissions. | Diesel, Natural Gas | Spec Sheets | |
 | Construction, Entertainment, Cold Storage/Retail | Quiet, Portable & Versatile: Excels in providing portable and mobile power solutions designed for easy transport in demanding, temporary applications. | Diesel, Gasoline | Spec Sheets |
Caterpillar
With a legacy spanning a century, Caterpillar is a global benchmark for durability and reliability. Recognized by its iconic “Caterpillar Yellow” livery, the Cat® brand is synonymous with equipment built to withstand the harshest environments, backed by an unparalleled global dealer network for parts and service. Their generators are a top choice for industries where failure is not an option, such as mining, heavy construction, and mission-critical data centers.
Cummins
A global power leader founded on diesel engine innovation, Cummins is defined by its vertically integrated approach to manufacturing. By designing and building every major component of its power systems—from the engine and alternator to the controls and aftertreatment—Cummins delivers a fully harmonized solution engineered for optimal performance and reliability. This “Power of One™” philosophy makes them a preferred partner for complex, mission-critical applications like healthcare and data centers.
Generac
Having established its dominance as the #1 manufacturer of home backup generators, Generac has leveraged its expertise to become a formidable force in the industrial sector. The company is a recognized leader in natural gas and bi-fuel engine technology, offering scalable and cost-effective solutions. Their Modular Power Systems (MPS) provide exceptional redundancy and flexibility, making them a smart choice for commercial and industrial facilities with evolving power needs.
Rehlko (formerly Kohler)
Building on over 100 years of Kohler’s engineering legacy, Rehlko is a global leader in energy resilience. The brand is distinguished by its commitment to total system integration, manufacturing not only the generator but also the transfer switches, paralleling switchgear, and controls. This ensures every component works together seamlessly, providing premium, durable, and highly reliable power ecosystems for the most demanding applications.
MTU – A Rolls Royce Solution
Representing the pinnacle of German engineering, MTU provides high-performance engines and power systems for the world’s most critical applications. As a core brand of Rolls-Royce Power Systems, MTU is synonymous with precision, superior power density, and exceptional fuel efficiency. Their systems are engineered for industries that demand the highest levels of performance and reliability, including data centers, marine propulsion, and defense.
Multiquip
A specialized manufacturer with a global reputation for unsurpassed reliability and, most notably, ultra-quiet performance. Multiquip’s MQ Power brand has carved out a dominant niche in noise-sensitive environments. Their WhisperWatt™ and Studio series generators are the industry standard for construction in urban areas, film production, and special events, where dependable, unobtrusive power is essential.
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