Diesel QSK50-Series G-Drive Engine

Diesel QSK50-Series

Frequency (Hz) 60, 50
Fuel Type Diesel
Rated for kW kVA
Standby 1120-1614 1400-2017
Prime 1021-1462 1277-1828


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)


Controlled high performance power.

This new series uses our state-of-the-art Quantum system to provide advanced engine manipulation and an enhanced electronic feature set.

The configuration also includes new injectors, pistons, turbos, valve covers and a 2-pump, 2-loop Low Temperature Aftercooling (LTA) system to meet U.S. EPA Tier 2 mobile off-highway emission levels, and make the QSK50 one of the cleanest engines in its class.

Generator Model Hz Prime kVA / kW Standby kVA / kW RPM Fuel Type Certification Spec Sheet
QSK50-G2 60 1382 / 1106 1587 / 1270 1800 Diesel EPA Tier 2, TA Luft Compliant Spec Sheet
QSK50-G3 60 1600 / 1280 1777 / 1422 1800 Diesel EPA Tier 2, TA Luft Compliant Spec Sheet
QSK50-G4 60 1708 / 1366 1911 / 1529 1800 Diesel EPA Tier 2, TA Luft Compliant Spec Sheet
QSK50-G5 60 1708 / 1366 1901 / 1528 1800 Diesel EPA Tier 2 Spec Sheet
QSK50-G6 60 1828 / 1462 2017 / 1614 1800 Diesel EPA Tier 2 Spec Sheet
QSK50-G2 50 1277 / 1021 1400 / 1120 1500 Diesel EPA Tier 2, TA Luft Compliant Spec Sheet
QSK50-G3 50 1400 / 1120 1562 / 1249 1500 Diesel EPA Tier 2, TA Luft Compliant Spec Sheet
QSK50-G4 50 1541 / 1233 1702 / 1361 1500 Diesel EPA Tier 2, TA Luft Compliant Spec Sheet
QSK50-G7 50 1651 / 1321 1825 / 1460 1500 Diesel EPA Tier 2 Spec Sheet

High pressure fuel pump, Modular Common Rail fuel System (MCRS) and state of the art integrated electronic control system provide superior performance, efficiency and diagnostics. The electronic fuel pumps deliver up to 1600 bar injection pressure and eliminate mechanical linkage adjustments.The new MCRS utilizes an electric priming pump which is integrated with the off-engine stage-1 fuel filter head and is controlled and powered by the engine ECM. The stage-2 fuel filters are mounted on-engine.

CTT (Cummins Turbo Technologies) HX82/HX83/HE851 turbo-charging utilizes exhaust energy with greater efficiency for improved emissions and fuel consumption.

Low Temperature After-cooling - Two-pump Two-loop (2P2L) Ferrous Cast Ductile Iron (FCD) Pistons - High strength design delivers superior durability.

G-Drive Integrated Design - 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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