Haifeng Machinery

Cummins NTA855-G3 vs Perkins 2206AE13TAG5

The Cummins NTA855-G3 and Perkins 2206AE13TAG5 are both diesel generator engines in a similar power class. Both are rated at roughly 438 kVA. Displacement is 14 L versus 12.5 L. The table below compares their full specifications side by side.

SpecificationCummins NTA855-G3Perkins 2206AE13TAG5
Headline rating438 kVA438 kVA
Standby (50 Hz)
Prime (50 Hz)
Standby (60 Hz)350 kWe350 kWe
Prime (60 Hz)315 kWe320 kWe
Displacement14 L12.5 L
ConfigurationL6L6
Cylinders66
Rated speed1,800 RPM1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsUnregulatedUnregulated
Dry weight
OriginChinaUnited States

Choosing between Cummins NTA855-G3 and Perkins 2206AE13TAG5

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.