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Regency Generators Knowledge Base

All About the Cummins QSX15-G8 Engine

What is the Cummins QSX15-G8 diesel engine?

The QSX15-G8 is a 6 cylinder, turbocharged and air cooled engine which is currently manufactured in the USA. The Cummins QSX15 series consists of a heavy duty diesel with 24 valve dual overhead camshaft technology. The engine can be used in both open and closed applications and either static or portable equipment.

The engine comes in either the 50 Hz or 60 Hz configuration and provides uncompromising power and efficiency in a compact package.

What is the power output of the Cummins QSX15-G8 diesel engine?

The total displacement of this engine is 15L, it requires 91L of oil and 42L of coolant. The engine therefore produces 595 horsepower (444 kWm) at 1500 RPM and 555 horsepower (414 kWm) at 1800 RPM.

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

What power rating does the Cummins QSX15-G8 diesel engine run at?

The engine is available for use in diesel generators at Prime (PRP)Standby (ESP) and Continuous (COP) ratings making it a good all round unit.

What is the fuel consumption of the Cummins QSX15-G8 engine?

The Cummins QSX15-G8 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 30.3 litres/hr
  • At 50% it uses 54.7 litres/hr
  • At 75% it uses 78.7 litres/hr
  • At 100% it uses 103 litres/hr

What are the dimensions of the Cummins QSX15-G8 diesel engine?

The Cummins diesel engine has dimensions of 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. 

Paired with an alternator in a generator this engine could be used for a variety of different power applications in a number of different industries. To further increase the power output the generator can be placed in sync with another generator to double the power output.

What customer support is offered with the Cummins QSX15-G8 diesel engine?

Every Cummins product comes with high levels of technical support and after sales service. This is done by a global network of professionals who are always on hand to make sure the engine is running at its best possible level.