New CAT Equipment

G12CM34 Gas Engine

The G12CM34 is a natural gas, spark ignited, V-style, turbo charged and aftercooled engine that provides: low emissions, high efficiency, high reliability, high flexibility, constant torque and variable speed. The engine achieves high efficiency and low emissions by utilizing solenoid operated gas admission valves, enriched prechamber design, and Cat® ADEM A3 control technology.

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    Product Specs

    Engine Specifications

    Minimum Rating 6135 HP
    Maximum Rating 6135 HP
    Emissions U.S. EPA SI NSPS Site Compliant Capable

    Oil Change Interval

    Oil Change Interval 7500 hrs


    Displacement 10 kW/L (0.22 hp/in3


    Aspiration Turbocharged-2 Stage Aftercooled

    Governor and Protection

    Governor and Protection Electronic (ADEM A3)


    Stroke 420 mm

    Rotation from Flywheel End

    Rotation from Flywheel End Counterclockwise


    Bore 340 mm

    Weight - Dry

    Weight - Dry 66000 kg

    Flywheel Teeth

    Flywheel Teeth 408

    Compression Ratio

    Compression Ratio 11.4:1