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Cat® C4.4 Industrial Power Unit
Cat® C18 Industrial Power Unit
Cat® C4.4 Industrial Power Unit
Cat® C18 Industrial Power Unit (<560 kW)

Power Rating

Maximum Power 129.4 HP 630 HP 108.6 HP 630 HP
Rated Speed 2200 rpm 1800-2100 2200 rpm 1800-2000 rpm
Minimum Power 129.4 HP 575 HP 81.8 HP 575 HP
Maximum Torque - - - 2177 lb-ft @ 1300 rpm

Emission Standards

Emissions China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent or Non-Certified UN ECE R96 Stage IIIA U.S. EPA Tier 4 Final, EU Stage V, China Nonroad Stage IV

General

Engine Configuration Inline 4, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel Inline 4, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel
Bore 4.1 in 5.7 in 4.1 in 5.7 in
Stroke 5 in 7.2 in 5 in 7.2 in
Displacement 268.5 in³ 1104.5 in³ 268.5 in³ 1104.5 in³
Compression Ratio 16.2:1 16.3:1 18.2:1 16.0:1
Aspiration Turbocharged Aftercooled (TA) Turbocharged Aftercooled (TA) Turbocharged (T) Turbocharged Aftercooled (TA)
Rotation from Flywheel End Counterclockwise Counterclockwise Counterclockwise Counterclockwise
Aftertreatment - - - DOC+DPF+SCR

Power Unit Dimensions

Length 53.5 in 54.6 in 49.6 in 99.7 in
Width 29.5 in 36.3 in 28.9 in 48.9 in
Height 37.9 in 48.9 in 38 in 79 in
Weight 1146 lb 4844 lb 1025 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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