Haifeng Machinery

Liebherr D976 vs Volvo Penta TWD1673GE

The Liebherr D976 and Volvo Penta TWD1673GE are both diesel/hvo generator engines in a similar power class. Both are rated at roughly 781 kVA. Displacement is 18 L versus 16.1 L. The table below compares their full specifications side by side.

SpecificationLiebherr D976Volvo Penta TWD1673GE
Headline rating780 kVA781 kVA
Standby (50 Hz)624 kWe
Prime (50 Hz)556.8 kWe
Standby (60 Hz)625 kWe
Prime (60 Hz)570 kWe
Displacement18 L16.1 L
ConfigurationL6L6
Cylinders66
Rated speed1,500 RPM1,800 RPM
FuelDiesel/HVODiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsEuro Stage V / U.S. EPA Tier 2U.S. EPA Final Tier 4
Dry weight
OriginSwitzerlandSweden

Choosing between Liebherr D976 and Volvo Penta TWD1673GE

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 Volvo Penta TWD1673GE has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.