The Generator EngineEncyclopedia

Caterpillar G3516H vs Cummins HSK78G

The Caterpillar G3516H and Cummins HSK78G are both natural gas generator engines in a similar power class. Both are rated at roughly 2,500 kVA. Displacement is 67.4 L versus 78 L. The table below compares their full specifications side by side.

SpecificationCaterpillar G3516HCummins HSK78G
Headline rating2,500 kVA2,500 kVA
Standby (50 Hz)
Prime (50 Hz)2,000 kWe2,000 kWe
Standby (60 Hz)
Prime (60 Hz)1,982 kWe
Displacement67.4 L78 L
ConfigurationV16V12
Cylinders1612
Rated speed1,500 / 1,800 RPM1,500 RPM
FuelNatural GasNatural Gas
CoolingLiquid-CooledLiquid-Cooled
EmissionsU.S. EPA StationaryUnregulated
Dry weight
OriginUnited StatesUnited States