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    Cat?� C2.2 Diesel Engine
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    Cat® C7.1 Industrial Power Unit
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    Cat?� C18 Industrial Power Unit (<560 kW)
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    Power Rating
    Maximum Power 74 hp 275 hp 630 hp
    Maximum Torque 199 lb-ft @ 1600 rpm 774 lb-ft @ 1400 rpm 2177 lb-ft @ 1300 rpm
    Rated Speed 2800 rpm 116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm 1800-2000 rpm
    Minimum Power 60 hp 156 hp 575 hp

    Emission Standards
    Emissions U.S. EPA & CARB Tier 4 Final, EU Stage V China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA U.S. EPA Tier 4 Final, EU Stage V, China Nonroad Stage IV

    General
    Engine Configuration In-Line 4, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel
    Bore 3.3 in 4.1 in 5.7 in
    Stroke 3.9 in 5.3 in 7.2 in
    Displacement 135 in³ 427.7 in³ 1104.5 in³
    Compression Ratio 17.0:1 16.8:1 16.0:1
    Aspiration Turbocharged (T) or Turbocharged-Aftercooled (TA) Turbocharged Aftercooled (TA) Turbocharged Aftercooled (TA)
    Combustion System Direct Injection - -
    Rotation from Flywheel End Counterclockwise Counterclockwise Counterclockwise
    Aftertreatment DOC+DPF - DOC+DPF+SCR

    Engine Dimensions - Approximate
    Length 31.7 in - -
    Width 20.8 in - -
    Height 30.2 in - -
    Weight - Net Dry - Basic Operating Engine Without Optional Attachments 509 lb - -

    Aftertreatment Dimensions
    Length 16.1 in - -
    Weight 12.8 lb - 591 lb
    Width - - 43.8 in
    Height - - 25.7 in

    Aftertreatment Dimensions*
    Diameter 6.1 in - 13 in

    Power Unit Dimensions
    Length - 68 in 99.7 in
    Width - 31 in 48.9 in
    Height - 44.8 in 79 in
    Weight - 1737 lb 5842 lb

    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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