The Generator EngineEncyclopedia

Cummins GGHG WSG-1068 vs Generac SG080 (9.0L)

The Cummins GGHG WSG-1068 and Generac SG080 (9.0L) are both natural gas generator engines in a similar power class. The Cummins GGHG WSG-1068 is the higher-output unit (106 kVA vs 100 kVA). Displacement is 6.8 L versus 8.9 L. The table below compares their full specifications side by side.

SpecificationCummins GGHG WSG-1068Generac SG080 (9.0L)
Headline rating106 kVA100 kVA
Standby (50 Hz)
Prime (50 Hz)
Standby (60 Hz)85 kWe80 kWe
Prime (60 Hz)
Displacement6.8 L8.9 L
ConfigurationV10V8
Cylinders108
Rated speed1,800 RPM1,800 RPM
FuelNatural GasNatural Gas
CoolingLiquid-CooledLiquid-Cooled
EmissionsU.S. EPA StationaryU.S. EPA Stationary
Dry weight
OriginUnited StatesUnited States

Choosing between Cummins GGHG WSG-1068 and Generac SG080 (9.0L)

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 GGHG WSG-1068 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.