Haifeng Machinery

Deutz F4L912T vs Perkins 1103C33TG2

The Deutz F4L912T and Perkins 1103C33TG2 are both diesel generator engines in a similar power class. Both are rated at roughly 51 kVA. Displacement is 3.77 L versus 3.3 L. The table below compares their full specifications side by side.

SpecificationDeutz F4L912TPerkins 1103C33TG2
Headline rating51 kVA51 kVA
Standby (50 Hz)40.5 kWe41 kWe
Prime (50 Hz)36.9 kWe37 kWe
Standby (60 Hz)46.8 kWe—
Prime (60 Hz)43.2 kWe—
Displacement3.77 L3.3 L
ConfigurationL4L3
Cylinders43
Rated speed1,500 / 1,800 RPM1,500 RPM
FuelDieselDiesel
CoolingAir-CooledLiquid-Cooled
EmissionsUnregulatedEU Stage II
Dry weight——
OriginGermanyUnited Kingdom / India

Choosing between Deutz F4L912T and Perkins 1103C33TG2

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.