The Generator EngineEncyclopedia

Cummins C50N6 vs Generac SG050NA

The Cummins C50N6 and Generac SG050NA are both natural gas generator engines in a similar power class. Both are rated at roughly 63 kVA. Displacement is 5.9 L versus 4.5 L. The table below compares their full specifications side by side.

SpecificationCummins C50N6Generac SG050NA
Headline rating63 kVA63 kVA
Standby (50 Hz)
Prime (50 Hz)
Standby (60 Hz)50 kWe50 kWe
Prime (60 Hz)
Displacement5.9 L4.5 L
ConfigurationL6L4
Cylinders64
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 C50N6 and Generac SG050NA

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.