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    Cat® C2.8 Diesel Engine
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    Cat® C18 Industrial Power Unit
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    Cat® 3516C Industrial Power Unit
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    Cat® C18 Industrial Power Unit (<560 kW)
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    Power Rating
    Maximum Power 74 HP 630 HP 2100 HP 630 HP
    Maximum Torque 280 lb-ft @ 1360 rpm - - 2177 lb-ft @ 1300 rpm
    Rated Speed 2200 - 2400 rpm 1800-2100 1750 rpm 1800-2000 rpm
    Minimum Power 67 HP 575 HP 2100 HP 575 HP

    Emission Standards
    Emissions U.S. EPA & CARB Tier 4 Final, EU Stage V China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent or Non-Certified U.S. EPA Tier 2 Nonroad equivalent emission standards (not currently EPA certified) U.S. EPA Tier 4 Final, EU Stage V, China Nonroad Stage IV

    General
    Engine Configuration In-Line 4 Inline 6, 4-Stroke-Cycle Diesel V-16, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel
    Bore 3.5 in 5.7 in 6.7 in 5.7 in
    Stroke 4.3 in 7.2 in 8.5 in 7.2 in
    Displacement 171 in³ 1104.5 in³ 4760 in³ 1104.5 in³
    Compression Ratio 17.0:1 16.3:1 13.0:1 16.0:1
    Aspiration Turbocharged (T) and Turbocharged-Aftercooled (TA) Turbocharged Aftercooled (TA) Turbocharged Aftercooled Turbocharged Aftercooled (TA)
    Combustion System Direct Injection - - -
    Rotation from Flywheel End Counterclockwise Counterclockwise Counterclockwise Counterclockwise
    Aftertreatment DOC+DPF - - DOC+DPF+SCR

    Engine Dimensions - Approximate
    Length 24.9 in - 129 in -
    Width 22.4 in - 60 in -
    Height 30.9 in - 81 in -
    Weight - Net Dry - Basic Operating Engine Without Optional Attachments 750 lb - 17284 lb -

    Power Unit Dimensions
    Length - 54.6 in - 99.7 in
    Width - 36.3 in - 48.9 in
    Height - 48.9 in - 79 in
    Weight - 4844 lb - 5842 lb

    Aftertreatment Dimensions
    Width - - - 43.8 in
    Height - - - 25.7 in
    Weight - - - 591 lb

    Aftertreatment Dimensions*
    Diameter - - - 13 in

    PETU Dimensions - Tier 4 Final Only
    Length - - - 33.6 in
    Width - - - 11.3 in
    Height - - - 21.7 in
    Weight - - - 42.8 lb
    Volume Capacity - - - 51.1 qt (US)
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