New CAT Equipment

C7.1 High Performance Propulsion Engine

The C7.1 marine propulsion engineis ideal for recreational boating applications, specifically smaller vessels and motoryachts ranging from 25 -60 feet in size. The engine features a common rail fuel system enabling optimum combustion and low emissions. The engines provide noticeably quiet operation due to reduced combustion noise through advanced electronic control. Additionally, no visible smoke is emitted from the C7.1 engines during operation.

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    Product Specs


    Power Range 400 bhp - 500 bhp (298 bkW - 373 bkW)

    Engine Specifications

    Speed Range 2900 rpm
    Rotation from Flywheel End Counterclockwise
    Bore 4.13 in
    Stroke 5.31 in
    Aspiration Turbocharged, aftercooled
    Displacement 428 in³
    Configuration In-line 6, 4-Stroke-Cycle Diesel
    Emissions IMO II, U.S. EPA Tier 3, RCD II, China II

    Dimensions & Weights

    Width - Engine 31.4 in
    Height 34.5 in
    Engine Dry Weight - Approximate 1676 lb
    Length - Engine 43.1 in