The Generator EngineEncyclopedia

Caterpillar G3412 vs Weichai 12M26D605E300NG

The Caterpillar G3412 and Weichai 12M26D605E300NG are both natural gas generator engines in a similar power class. Both are rated at roughly 622 kVA. Displacement is 27 L versus 31.2 L. The table below compares their full specifications side by side.

SpecificationCaterpillar G3412Weichai 12M26D605E300NG
Headline rating625 kVA619 kVA
Standby (50 Hz)495 kWe
Prime (50 Hz)500 kWe500 kWe
Standby (60 Hz)
Prime (60 Hz)
Displacement27 L31.2 L
ConfigurationV12V12
Cylinders1212
Rated speed1,500 RPM1,500 RPM
FuelNatural GasNatural Gas
CoolingLiquid-CooledLiquid-Cooled
EmissionsU.S. EPA StationaryUnregulated
Dry weight
OriginUnited StatesChina