Diesel QSB-Series G-Drive Engine

Diesel QSB-Series

Frequency (Hz) 50
Certification EU Stage IIIA, EPA Tier 3
Fuel Type Diesel
Rated for kW kVa
Standby 64-176 80-220
Prime 58-160 72-200


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A powerful performer.

With greater engine manipulation capabilities, the QSB-Series is one of the cleanest on the market, reaching EPA T3/EU Stage IIIA at both 1500rpm and 1800rpm. These new Quantum system engines, featuring a common rail fuel system, combine proven full-authority electronic controls with powerful performance even in the most demanding applications.

Generator Model Hz Prime kVA / kW Standby kVA / kW RPM Fuel Type Certification Spec Sheet
QSB5-G2 50 72 / 58 80 / 64 1500 Diesel EU Stage IIIA, EPA Tier 3 PDF
QSB5-G3 50 82 / 66 90 / 72 1500 Diesel EU Stage IIIA, EPA Tier 3 PDF
QSB5-G4 50 91 / 73 100 / 80 1500 Diesel EU Stage IIIA, EPA Tier 3 PDF
QSB5-G5 50 100 / 80 110 / 88 1500 Diesel EU Stage IIIA, EPA Tier 3 PDF
QSB5-G6 50 136 / 109 150 / 120 1500 Diesel EU Stage IIIA, EPA Tier 3 PDF
QSB7-G3 50 150 / 120 175 / 140 1500 Diesel EU Stage IIIA, EPA Tier 3 PDF
QSB7-G4 50 180 / 144 200 / 160 1500 Diesel EU Stage IIIA, EPA Tier 3 PDF
QSB7-G5 50 200 / 160 220 / 176 1500 Diesel EU Stage IIIA, EPA Tier 3 PDF

Full-Authority Electronic Controls - Optimize engine operation and deliver critical information for controlling costs, reducing maintenance and seamless integration with other components.

Holset HX35 Wastegated Turbo - Wastegated design optimizes transient response.

Low-Maintenance Fuel Filter Assembly - The fuel filter incorporates an integral water separator and water-in-fuel sensor; 500-hour filter life with easy top-load replacement using standard Fleetguard filters.

Coolpac Integrated Design - Products are supplied complete with cooling package and air cleaner kit for a complete power package. Each component has been specifically developed and rigorously tested for  G-Drive products, ensuring high performance, durability and reliability.

Service and Support - G-Drive products are backed by an uncompromising level of technical support and after sales service, delivered through a world class service network.

To protect public health and conserve our planet's natural resources, legislation from the U.S. Environmental Protection Agency (EPA) and regulatory agencies in the European Union (EU) has, for the past decade, required that pollutants produced by diesel engines - such as nitrogen oxides (NOx), hydrocarbons (HC) and particulate matter (PM) - be reduced.

Throughout this time, Cummins Inc. has been at the forefront of the move to meet these new standards, becoming:

  • the first manufacturer to introduce EPA Tier-2 and Tier-3 products to the market - ahead of the regulatory deadline;
  • the first manufacturer to introduce EU Stage IIIA compliant generator-drive diesel engines to Europe;
  • the leader in innovative emissions solutions that focus predominantly on in-cylinder design improvements to eliminate most of the NOx, HC and PM before they are formed.

As a result, our diesel engines are not only very clean, but also retain all of their performance advantages without exhaust after treatment strategies that add cost and complicate maintenance for end users.

G-Drive Engines

  • Mid-range (1.3 - 9L) medium-horsepower engines (16 to 476 hp), providing the broadest Tier 3 range which further reduce Tier 2 NOx levels by 38%
  • Heavy duty (11 - 15L) 415 to 755 hp engines powering commercial operations
  • High-horsepower (19 - 78L) 675 to 3700 hp at both 1500 and 1800 rpm, designed to meet Tier 2/Stage II emissions requirements for electronics and diagnostics, base engine and turbocharging, power cylinder and fuel systems

Cummins Power Generation provides the best warranty and extended warranty plan in the industry. You can expect Cummins Power Generation and its authorized warranty locations to:

  • Stand behind Cummins Power Generation products.
  • Repair all failures that are a result of defects in materials or factory workmanship by Cummins Power Generation, or arrange for OEM warranty service if component is from another manufacturer.
  • Provide the benefit of the coverage immediately.
  • Treat all customers fairly and consistently.

For specific information regarding your warranty, or for more information regarding our warranties contact your nearest distributor.

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