Haifeng Machinery

Cummins C500N6B vs Weichai 12M26D605E300NG

Compare Cummins C500N6B and Weichai 12M26D605E300NG by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 28 L and 31.2 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 C500N6BWeichai 12M26D605E300NG
Standby electrical (50 Hz)Not listedNot listed
Prime electrical (50 Hz)Not listed500 kWe
Standby electrical (60 Hz)500 kWeNot listed
Prime electrical (60 Hz)Not listedNot listed
Displacement28 L31.2 L
ConfigurationV12V12
Cylinders1212
Recorded engine speed1,800 RPM1,500 RPM
FuelNatural GasNatural Gas
CoolingLiquid-CooledLiquid-Cooled
Recorded emissions classificationU.S. EPA StationaryUnregulated
Dry weightNot listedNot listed
OriginUnited StatesChina

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 C500N6B: Review the model record and available supporting documents

Weichai 12M26D605E300NG: Review the model record and available supporting documents

Choosing between Cummins C500N6B and Weichai 12M26D605E300NG

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.