Haifeng Machinery

Cummins QSK60G vs MTU 12V4000 GS

The Cummins QSK60G and MTU 12V4000 GS are both natural gas generator engines in a similar power class. Both are rated at roughly 1,915 kVA. Displacement is 60.2 L versus 57.2 L. The table below compares their full specifications side by side.

SpecificationCummins QSK60GMTU 12V4000 GS
Headline rating1,925 kVA1,904 kVA
Standby (50 Hz)
Prime (50 Hz)1,540 kWe1,523 kWe
Standby (60 Hz)
Prime (60 Hz)
Displacement60.2 L57.2 L
ConfigurationV16V12
Cylinders1612
Rated speed1,500 / 1,800 RPM1,500 RPM
FuelNatural GasNatural Gas
CoolingLiquid-CooledLiquid-Cooled
EmissionsU.S. EPA StationaryUnregulated
Dry weight
OriginUnited StatesGermany

Choosing between Cummins QSK60G and MTU 12V4000 GS

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 Cummins QSK60G has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.