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Cat® C4.4 Industrial Power Unit
Cat® C27 Industrial Power Unit
Cat® C32 Industrial Power Unit
Cat® C11 Industrial Power Unit

Power Rating

Maximum Power 129.4 HP 950 HP 1000 HP 451 HP
Rated Speed 2200 rpm 1800 rpm 1800 rpm 1800-2100 rpm
Minimum Power 129.4 HP 800 HP 1000 HP 325 HP
Maximum Torque - 3211 lb-ft @ 1200 rpm 3825 lb-ft @ 1200 rpm -

Emission Standards

Emissions China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA U.S. EPA Tier 4 Final, EU Stage V U.S. EPA Tier 4 Final and EU Stage V Brazil MAR-1, UN R96 Stage IIIA, U.S. EPA Tier 3

General

Engine Configuration Inline 4, 4-Stroke-Cycle Diesel V-12, 4-Stroke-Cycle Diesel V-12 Inline 6, 4-Stroke-Cycle Diesel
Bore 4.1 in 5.7 in 5.7 in 5.1 in
Stroke 5 in 6 in 6.4 in 5.5 in
Displacement 268.5 in³ 1649.5 in³ 1958.9 in³ 677.4 in³
Compression Ratio 16.2:1 16.0:1 16.0:1 17.2:1
Aspiration Turbocharged Aftercooled (TA) Twin Turbocharged-Aftercooled (TTA) Twin Turbocharged Aftercooled (TTA) Turbocharged Aftercooled (TA)
Rotation from Flywheel End Counterclockwise Counterclockwise Counterclockwise Counterclockwise
Aftertreatment - DOC DOC -
Cycle - - 4 -
Combustion System - - Direct Injection -
Cooling System - - liquid -

Power Unit Dimensions

Length 53.5 in - 100.7 in 92 in
Width 29.5 in - 64.4 in 50 in
Height 37.9 in - 77.6 in 71 in
Weight 1146 lb - - 3730 lb
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