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Regency Generators Knowledge Base

All About the Cummins QSX15-G6 Engine

What is the Cummins QSX15-G6 diesel engine?

The Cummins QSX15 series consists of a heavy duty diesel with 24 valve single overhead camshaft. The engine can be used in a generator as either open or canopied and either static or portable making it very versatile.

Note: Cummins updated this engine from dual overhead camshaft to a single in 2020Q2.

The 6 cylinder engine comes in either the 50 Hz or 60 Hz configuration and can be matched to meet a specific duty cycle and operating conditions of any generator set. The engine is manufactured in the USA and contains a turbocharger and is air cooled.

What is the power output of the Cummins QSX15-G6 diesel engine?

The total displacement of this engine is 15L and also requires 91L of oil and 42L of coolant. The engine therefore produces 555 horsepower (414 kWm) at 1500 RPM and 1800 RPM.

Need a diesel generator? Our UK made diesel generators include this Cummins diesel engine.

What power rating does the Cummins QSX15-G6 diesel engine run at?

The engine is available for use in diesel generators at Prime (PRP)Standby (ESP) and Continuous (COP) power ratings meaning the engine can be used for a variety of applications.

What is the fuel consumption of the Cummins QSX15-G6 engine?

The Cummins QSX15-G6 fuel consumption depends on its load. At 1500 rpm prime power it is has the following fuel consumption (percent of prime power):

  • At 25% it uses 29.1 litres/hr
  • At 50% it uses 51.3 litres/hr
  • At 75% it uses 74.3 litres/hr
  • At 100% it uses 95.9 litres/hr

What are the dimensions of the Cummins QSX15-G6 diesel engine?

The dimensions of this Cummins Diesel Engine are 2269mm long, 1332mm wide, 1669mm high and has a dry weight of 1658 kg. The dimensions of the bore and stroke are 137mm and 169mm respectively. 

Coupled with an alternator to create a generator this engine could be used for a variety of different power needs. If placed in parallel with other generator sets it would further increase the power generation.

What customer support is offered with the Cummins QSX15-G6 diesel engine?

Cummins have an excellent after sales service and technical support team around the world to make sure someone is on hand to help resolve any issues you may have with one of their products. They have one of the best warranty services in the industry.