New CAT Equipment

C11 ACERT Dry Manifold Engine

Cat C11 ACERT engines are the ideal solution for your demanding operations in the oilfield. Decades of field operation and intense research and development allow Cat C11 ACERT engines to deliver excellent performance with low operating costs and emissions. Equipment powered by C11 ACERT engines include workover rigs, pump skids, acidizing units, cementing 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. C11 ACERT engines, with ratings: 242-336 bkW (325-450 bhp) @ 1800-2100 rpm, meet China Stage II, EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. They are available using U.S. EPA and EU Flexibility, and for other regulated and non-regulated areas.

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    Product Specs

    General Specifications

    Minimum Rating 325 BHP
    Maximum Rating 450 BHP
    Governor and Protection Electronic (ADEM A3)
    Aspiration Turbocharged-Aftercooled
    Displacement 681 in³
    Flywheel and Flywheel Housing SAE 1 or SAE 2
    Flywheel Teeth 113 (SAE 1), 138 (SAE 2)
    Rotation from Flywheel End Counterclockwise
    Stroke 5.51 in
    Bore 5.12 in


    Emissions EPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA


    Length 47.3 in
    Width 41.6 in
    Height 46.3 in
    Weight 1967 lb

    Capacity for Liquids

    Lube Oil System - Refill 9 gal (US)