Haifeng Machinery

Guascor G-56SM vs Liebherr G9620

The Guascor G-56SM and Liebherr G9620 are both natural gas generator engines in a similar power class. Both are rated at roughly 1,283 kVA. Displacement is 56.3 L versus 48.7 L. The table below compares their full specifications side by side.

SpecificationGuascor G-56SMLiebherr G9620
Headline rating1,281 kVA1,285 kVA
Standby (50 Hz)——
Prime (50 Hz)1,025 kWe1,028 kWe
Standby (60 Hz)——
Prime (60 Hz)1,065 kWe1,038 kWe
Displacement56.3 L48.7 L
ConfigurationV16V20
Cylinders1620
Rated speed1,500 / 1,800 RPM1,500 / 1,800 RPM
FuelNatural GasNatural Gas
CoolingLiquid-CooledLiquid-Cooled
EmissionsUnregulatedUnregulated
Dry weight——
OriginSpainSwitzerland

Choosing between Guascor G-56SM and Liebherr G9620

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 Liebherr G9620 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.