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Cat® C4.4 Industrial Power Unit
Cat® C11 Industrial Power Unit
Cat® C15 Industrial Power Unit

Power Rating

Maximum Power 108.6 HP 451 HP 580 HP
Rated Speed 2200 rpm 1800-2100 rpm 1800-2100 rpm
Minimum Power 81.8 HP 325 HP 475 HP
Maximum Torque - - 1958 lb-ft @ 1400 rpm

Emission Standards

Emissions UN ECE R96 Stage IIIA Brazil MAR-1, UN R96 Stage IIIA, U.S. EPA Tier 3 U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final), Korea Stage V, China Nonroad IV

General

Engine Configuration Inline 4, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel
Bore 4.1 in 5.1 in 5.4 in
Stroke 5 in 5.5 in 6.7 in
Displacement 268.5 in³ 677.4 in³ 927.6 in³
Compression Ratio 18.2:1 17.2:1 17.0:1
Aspiration Turbocharged (T) Turbocharged Aftercooled (TA) Turbocharged Aftercooled (TA)
Rotation from Flywheel End Counterclockwise Counterclockwise Counterclockwise
Aftertreatment - - DOC+DPF+SCR

Power Unit Dimensions

Length 49.6 in 92 in 98 in
Width 28.9 in 50 in 48.4 in
Height 38 in 71 in 79 in
Weight 1025 lb 3730 lb 5842 lb

Aftertreatment Dimensions

Width - - 43.8 in
Height - - 25.8 in
Weight - - 591 lb

Aftertreatment Dimensions*

Diameter - - 14 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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