The Generator EngineEncyclopedia

Cummins QSB3.9-G39 vs FPT NEF45 TE2P

The Cummins QSB3.9-G39 and FPT NEF45 TE2P are both diesel generator engines in a similar power class. Both are rated at roughly 125 kVA. Displacement is 3.9 L versus 4.5 L. The table below compares their full specifications side by side.

SpecificationCummins QSB3.9-G39FPT NEF45 TE2P
Headline rating125 kVA125 kVA
Standby (50 Hz)100 kWe
Prime (50 Hz)80 kWe
Standby (60 Hz)100 kWe
Prime (60 Hz)91.2 kWe
Displacement3.9 L4.5 L
ConfigurationL4L4
Cylinders44
Rated speed1,500 RPM1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsUnregulatedU.S. EPA Tier 3
Dry weight
OriginChinaItaly