Haifeng Machinery

Ashok Leyland H4G4DE100 vs Cummins QSB3.9-G3

Compare Ashok Leyland H4G4DE100 and Cummins QSB3.9-G3 by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 5 L and 3.9 L, respectively. Start with the same duty and frequency, then check each model’s source and package conditions. These records alone do not establish interchangeability.

SpecificationAshok Leyland H4G4DE100Cummins QSB3.9-G3
Standby electrical (50 Hz)80 kWe80 kWe
Prime electrical (50 Hz)72 kWe64 kWe
Standby electrical (60 Hz)Not listedNot listed
Prime electrical (60 Hz)Not listedNot listed
Displacement5 L3.9 L
ConfigurationL4L4
Cylinders44
Recorded engine speed1,500 RPM1,500 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
Recorded emissions classificationUnregulatedChina National Stage III / Unregulated
Dry weightNot listedNot listed
OriginIndiaChina

Compare matching ratings

Read across a row to compare the same operating duty and frequency. kWe is electrical output; mechanical kW is power at the engine shaft. kVA is apparent electrical power and is shown only when kWe is missing, without converting it. “Not listed” means the record lacks that rating, not zero output. Continuous and prime duties are kept separate. Check source documents, units and site conditions before comparing values.

An emissions classification in the catalog is not proof of certification for your engine or installation. Confirm the exact model, applicable documents and generator configuration.

Ashok Leyland H4G4DE100: Review the model record and available supporting documents

Cummins QSB3.9-G3: Review the model record and available supporting documents

Choosing between Ashok Leyland H4G4DE100 and Cummins QSB3.9-G3

Use this comparison as an engineering shortlist, then confirm the complete generator package against load profile, voltage, 50/60 Hz frequency, duty class, emissions rules, cooling margin, altitude, ambient temperature, enclosure design, controller features, and alternator sizing.