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    Cat® C4.4 Diesel Engine
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    Cat® C15 Industrial Power Unit
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    Cat® C11 Industrial Power Unit
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    Cat® C27 Industrial Power Unit
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    Cat® C4.4 Industrial Power Unit
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    Power Rating
    Maximum Power 111.3 HP 540 HP 451 HP 950 HP 108.6 HP
    Maximum Torque 308 lb-ft @ 1400 rpm - - 3211 lb-ft @ 1200 rpm -
    Rated Speed 2200-2400 rpm 1800-2100 rpm 1800-2100 rpm 1800 rpm 2200 rpm
    Minimum Power 72.4 HP 440 HP 325 HP 800 HP 81.8 HP

    Emission Standards
    Emissions UN ECE R96 Stage IIIA China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent Brazil MAR-1, UN R96 Stage IIIA, U.S. EPA Tier 3 U.S. EPA Tier 4 Final, EU Stage V UN ECE R96 Stage IIIA

    Engine Dimensions - Approximate
    Length 26.1 in - - - -
    Width 23.7 in - - - -
    Height 30.5 in - - - -
    Weight - Net Dry - Basic Operating Engine Without Optional Attachments 674.6 lb - - - -

    General
    Engine Configuration Inline 4, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel V-12, 4-Stroke-Cycle Diesel Inline 4, 4-Stroke-Cycle Diesel
    Bore 4.1 in 5.4 in 5.1 in 5.7 in 4.1 in
    Stroke 5 in 6.8 in 5.5 in 6 in 5 in
    Displacement 269 in³ 927.6 in³ 677.4 in³ 1649.5 in³ 268.5 in³
    Compression Ratio 18.2:1 18.0:1 17.2:1 16.0:1 18.2:1
    Aspiration Naturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA) Turbocharged Aftercooled (TA) Turbocharged Aftercooled (TA) Twin Turbocharged-Aftercooled (TTA) Turbocharged (T)
    Combustion System Direct Injection - - - -
    Rotation from Flywheel End Counterclockwise Counterclockwise Counterclockwise Counterclockwise Counterclockwise
    Aftertreatment - - - DOC -

    Power Unit Dimensions
    Length - 96.4 in 92 in - 49.6 in
    Width - 51.8 in 50 in - 28.9 in
    Height - 103.5 in 71 in - 38 in
    Weight - 4532 lb 3730 lb - 1025 lb
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