Haifeng Machinery

SDEC 6ETAA11.8-G21 vs Yunnei D6T503-35CR2

Compare SDEC 6ETAA11.8-G21 and Yunnei D6T503-35CR2 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.

SpecificationSDEC 6ETAA11.8-G21Yunnei D6T503-35CR2
Standby electrical (50 Hz)304 kWeNot listed
Prime electrical (50 Hz)276 kWe302 kWe
Standby electrical (60 Hz)304 kWeNot listed
Prime electrical (60 Hz)276 kWeNot listed
Displacement11.8 L13 L
ConfigurationL6L6
Cylinders66
Recorded engine speed1,500 RPM1,500 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
Recorded emissions classificationChina National Stage III / UnregulatedChina National Stage III / Unregulated
Dry weightNot listedNot 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.

SDEC 6ETAA11.8-G21: Review the model record and available supporting documents

Yunnei D6T503-35CR2: Review the model record and available supporting documents

Choosing between SDEC 6ETAA11.8-G21 and Yunnei D6T503-35CR2

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.