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Regency Generators Knowledge Base

All About the Cummins QST30-G4 Engine

What is the Cummins QST30-G4 diesel engine?

The QST30-G4 is a 12 cylinder, turbocharged and after cooled engine which is currently made in the USA. The turbocharger is specially designed to utilize the energy coming out the exhaust with as much efficiency as possible to improve emissions and fuel consumption.

The engine has been rigorously tested to make sure that it is robust, durable and reliable.

What is the power output of the Cummins QST30-G4 diesel engine?

The total displacement of this engine is 30.5L, it requires 154L of oil and 192L of coolant. The engine therefore produces 1180 horsepower (880 kWm) at 1500 RPM and 1350 horsepower (1007 kWm) at 1800 RPM.

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

What power rating does the Cummins QST30-G4 diesel engine run at?

The QST30-G4 is available for use in diesel generators at Prime (PRP)Standby (ESP) and Continuous (COP) and can also be ran at either 50 Hz or 60 Hz.

What is the fuel consumption of the Cummins QST30-G4 engine?

The Cummins QST30-G4 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 54 litres/hr
  • At 50% it uses 102 litres/hr
  • At 75% it uses 151 litres/hr
  • At 100% it uses 202 litres/hr

What are the dimensions of the Cummins QST30-G4 diesel engine?

This Cummins Diesel Engine has dimensions of 3008mm length, 1429mm width, 2275mm height and has a dry weight of 3662 kg. The dimensions of the bore and stroke are 140.0mm and 165.1mm respectively. 

This engine can be paired with an alternator to make a generator. The generator can be used in a wide range of industries for power generation, and if a larger power is required the generator can be placed in parallel with another generator to double the power output.

What customer support is offered with the Cummins QST30-G4 diesel engine?

Cummins engines come with an uncompromising level of support and after sales service. Their team is always on hand to help with any queries.