Haifeng Machinery

Cummins KTA38-G2B vs Weichai 12M26D792E200

The Cummins KTA38-G2B and Weichai 12M26D792E200 are both diesel generator engines in a similar power class. Both are rated at roughly 890 kVA. Displacement is 38 L versus 31.2 L. The table below compares their full specifications side by side.

SpecificationCummins KTA38-G2BWeichai 12M26D792E200
Headline rating888 kVA891 kVA
Standby (50 Hz)710 kWe713 kWe
Prime (50 Hz)640 kWe648 kWe
Standby (60 Hz)830 kWe812 kWe
Prime (60 Hz)750 kWe738 kWe
Displacement38 L31.2 L
ConfigurationV12V12
Cylinders1212
Rated speed1,500 / 1,800 RPM1,500 / 1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsUnregulatedChina National Stage II / Unregulated
Dry weight
OriginChinaChina

Choosing between Cummins KTA38-G2B and Weichai 12M26D792E200

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. The Weichai 12M26D792E200 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.