Haifeng Machinery

Baudouin 6M31G9D3/5 vs Cummins QSK23G9

The Baudouin 6M31G9D3/5 and Cummins QSK23G9 are both diesel generator engines in a similar power class. Both are rated at roughly 900 kVA. Displacement is 18.5 L versus 23 L. The table below compares their full specifications side by side.

SpecificationBaudouin 6M31G9D3/5Cummins QSK23G9
Headline rating900 kVA900 kVA
Standby (50 Hz)720 kWe720 kWe
Prime (50 Hz)640 kWe648 kWe
Standby (60 Hz)
Prime (60 Hz)
Displacement18.5 L23 L
ConfigurationL6L6
Cylinders66
Rated speed1,500 RPM1,500 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsChina IIIU.S. EPA Tier 2 / China III
Dry weight
OriginChinaIndia

Choosing between Baudouin 6M31G9D3/5 and Cummins QSK23G9

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.