New CAT Equipment

C9.3 ACERT Tier 4i/Stage IIIB Engine

Cat C9.3 ACERT engines are the ideal solution for your demanding operations in the oilfield. Decades of field operation and intense research and development allow Cat C9.3 ACERT engines to deliver excellent performance with low operating costs and emissions. This is an ideal engine for applications that require Tier 4 Interim or EU Stage IIIB emissions certifications. Equipment powered by C9.3 ACERT engines includes workover rigs, pump skids, acidizing units, cementing units, coil tubing units, and hydraulic power units. Cat engines are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. Cat® C9.3 ACERT Industrial Diesel Engine. Ratings: 224-261 bkW (300-350 bhp) @ 1800-2200 rpm meet U.S. EPA Tier 4 Interim, EU Stage IIIB emission standards. This information about Emissions describes the particular rating's emissions technology. For more information about emissions certification, please contact your local Cat dealer.

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    Product Specs

    General Specifications

    Minimum Rating 300 BHP
    Maximum Rating 350 BHP
    Governor and Protection Electronic (ADEM A4)
    RPM 2200 r/min
    Aspiration Turbocharged-Aftercooled
    Displacement 567.5 in³
    Flywheel and Flywheel Housing SAE 1 or SAE 2
    Flywheel Teeth 113 (SAE 1)
    Rotation from Flywheel End Counterclockwise
    Stroke 5.87 in
    Bore 4.53 in


    Emissions US EPA Tier 4 Interim, EU Stage IIIB


    Length 45.3 in
    Width 32.6 in
    Height 44.21 in
    Weight 1950 lb

    Capacity for Liquids

    Lube Oil System - Refill 31.7 gal (US)
    Cooling System 23.5 gal (US)