New CAT Equipment

Cat C18 ACERT Propulsion Engine (Tier 3)

The C18 ACERT marine propulsion engine has commercial application ratings of 475-725 mhp (469-715 bhp) at 1800-2100 rpm that meet U.S. EPA Tier 3, IMO II, and EU IW emissions regulations. In addition to meeting the stricter EPA Tier 3 emissions, this engine now offers a fresh water aftercooled option for the commercial propulsion and auxiliary engines and genset packages. From fishing to offshore and everything in between, you can be confident that we have the solution to fit your needs.

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    Product Specs

    Power Rating

    Power Range 469-1001 bhp (350-747 bkW)

    Engine Specifications

    Speed Range 1800-2300 rpm
    Emissions EPA Tier 3 Commercial, IMO II, EU IW
    Aspiration TA, TTA
    Bore 5.7 in
    Stroke 7.2 in
    Displacement 1106 inĀ³
    Rotation from Flywheel End Counterclockwise
    Configuration In-line 6, 4-Stroke-Cycle Diesel

    Dimensions & Weights

    Minimum Dry Weight 4000 lb
    Minimum Length 73 in
    Maximum Length 76 in
    Minimum Height 47.2 in
    Maximum Height 51.2 in
    Minimum Width 44.6 in
    Maximum Width 47.4 in