The Generator EngineEncyclopedia

PSI 26L-D vs VMAN D30B3

The PSI 26L-D and VMAN D30B3 are both diesel generator engines in a similar power class. Both are rated at roughly 1,037 kVA. Displacement is 26.1 L versus 29.235 L. The table below compares their full specifications side by side.

SpecificationPSI 26L-DVMAN D30B3
Headline rating1,050 kVA1,024 kVA
Standby (50 Hz)
Prime (50 Hz)
Standby (60 Hz)840 kWe819 kWe
Prime (60 Hz)743 kWe
Displacement26.1 L29.235 L
ConfigurationV8V16
Cylinders816
Rated speed1,800 RPM1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsU.S. EPA Tier 3Unregulated
Dry weight
OriginUnited StatesChina

Choosing between PSI 26L-D and VMAN D30B3

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 PSI 26L-D has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.