Diesel QST30-Series G-Drive Engine

Diesel QST30-Series

Frequency (Hz) 60, 50
Fuel Type Diesel
Rated for kW kVA
Standby 816-1019 1020-1273
Prime 741-929 926-1162


Rental (G-Drive) Prime (G-Drive) Movie Site Intermodal Rail (G-Drive) Dynamic / Rotary UPS Crushing / Mining Oil and Gas (G-Drive) Standby (G-Drive)


Proven performance around the clock.

Sophisticated electronics and premium engineering give the QST30 Quantum series outstanding performance levels, delivering more power and torque in a smaller package than many of its competitors.

Setting the standard for rugged dependable power, the engine uses Ductile Iron pistons to provide the improved strength and durability to handle increased cylinder pressure, ensuring longer life cycles to overhaul.

Generator Model Hz Prime kVA / kW Standby kVA / kW RPM Fuel Type Certification Spec Sheet
QST30-G5 60 1142 / 914 1253 / 1002 1800 Diesel EPA Tier 2 PDF
QST30-G3 50 926 / 741 1020 / 816 1500 Diesel Non-Regulated PDF
QST30-G4 (2P2L) 50 1008 / 806 1103 / 883 1500 Diesel Non-Regulated PDF
QST30-G3 60 1049 / 839 1152 / 922 1800 Diesel Non-Regulated PDF
QST30-G4 (2P2L) 60 1162 / 929 1273 / 1019 1800 Diesel Non-Regulated PDF
QST30-G4 (ATA) 50 1008 / 806 1103 / 883 1500 Diesel Non-Regulated PDF
QST30-G4 (ATA) 60 1162 / 929 1273 / 1019 1800 Diesel Non-Regulated PDF

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.

Quantum Electronic Fuel System and Controls Quantum electronics provide superior performance, efficiency and diagnostics. The electronic fuel pumps deliver up to 1100 bar injection pressure and eliminate mechanical linkage adjustments.

Holset HX82 Turbocharging Utilises exhaust energy with greater efficiency for improved emissions and fuel consumption.

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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