New CAT Equipment


The 9CM20C generator set brings to the offshore industry a legacy of proven reliability and durability in the marine industry. CM offshore generator sets feature standard modular designs, engine-mounted pumps and filters, and a full range of factory attachments that make their installation simple and efficient. Ideal applications for the 9CM20C offshore generator sets are main power on-board production vessels and platforms. Complete package offerings are MCS type-approved and compliant with IMO Tier II emissions standards, making their integration into vessels and platforms a simplified operation. Cat generator sets are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty.

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    Product Specs

    Engine Specifications

    Minimum Rating 4023 kV·A
    Maximum Rating 3600 kV·A
    Emissions IMO Tier II
    Weight 57320 lb
    Displacement 5163 in³
    Stroke 11.81 in
    Bore 7.87 in
    Engine Control Electronic
    Generator Set Control Electronic
    Aspiration Turbocharged-Aftercooled


    Height 133.4 in
    Width 71.5 in
    Length 280.5 in