Haifeng Machinery

MTU MTU 12V4000 G84S vs SDEC 12KTA58-G33

The MTU MTU 12V4000 G84S and SDEC 12KTA58-G33 are both diesel generator engines in a similar power class. Both are rated at roughly 2,138 kVA. Displacement is 57.2 L versus 58 L. The table below compares their full specifications side by side.

SpecificationMTU MTU 12V4000 G84SSDEC 12KTA58-G33
Headline rating2,149 kVA2,126 kVA
Standby (50 Hz)1,701 kWe
Prime (50 Hz)1,548 kWe
Standby (60 Hz)1,719 kWe
Prime (60 Hz)
Displacement57.2 L58 L
ConfigurationV12V12
Cylinders1212
Rated speed1,800 RPM1,500 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsUnregulatedChina National Stage III / Unregulated
Dry weight
OriginGermanyChina

Choosing between MTU MTU 12V4000 G84S and SDEC 12KTA58-G33

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 MTU MTU 12V4000 G84S has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.