The Generator EngineEncyclopedia

FPT NEF45SM2X vs SDEC 4HT4.3-G22

The FPT NEF45SM2X and SDEC 4HT4.3-G22 are both diesel generator engines in a similar power class. Both are rated at roughly 76 kVA. Displacement is 4.5 L versus 4.3 L. The table below compares their full specifications side by side.

SpecificationFPT NEF45SM2XSDEC 4HT4.3-G22
Headline rating76 kVA76 kVA
Standby (50 Hz)61 kWe
Prime (50 Hz)56 kWe
Standby (60 Hz)61 kWe67 kWe
Prime (60 Hz)55 kWe60 kWe
Displacement4.5 L4.3 L
ConfigurationL4L4
Cylinders44
Rated speed1,800 RPM1,500 / 1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsU.S. EPA Tier 3China National Stage III / Unregulated
Dry weight
OriginItalyChina

Choosing between FPT NEF45SM2X and SDEC 4HT4.3-G22

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.