Haifeng Machinery

Cummins QSG12-G4 vs Weichai WP13D405E200

Compare Cummins QSG12-G4 and Weichai WP13D405E200 by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 11.8 L and 13 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.

SpecificationCummins QSG12-G4Weichai WP13D405E200
Standby electrical (50 Hz)364 kWe364 kWe
Prime electrical (50 Hz)333 kWeNot listed
Standby electrical (60 Hz)418 kWe403 kWe
Prime electrical (60 Hz)383 kWeNot listed
Displacement11.8 L13 L
ConfigurationL6L6
Cylinders66
Recorded engine speed1,500 RPM1,500 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
Recorded emissions classificationUnregulatedChina National Stage II / Unregulated
Dry weight1,110 kgNot listed
OriginChinaChina

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.

Cummins QSG12-G4: Review the model record and available supporting documents

Weichai WP13D405E200: Review the model record and available supporting documents

Choosing between Cummins QSG12-G4 and Weichai WP13D405E200

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.