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Cat® C7.1 Industrial Power Unit
Cat® C4.4 Industrial Power Unit
Cat® C18 Industrial Power Unit (<560 kW)
Cat® C27 Industrial Power Unit

Power Rating

Maximum Power 302 HP 129.4 HP 630 HP 950 HP
Maximum Torque 940 lb-ft @ 1400 rpm - 2177 lb-ft @ 1300 rpm 3211 lb-ft @ 1200 rpm
Rated Speed 1800-2200 rpm 2200 rpm 1800-2000 rpm 1800 rpm
Minimum Power 202 HP 129.4 HP 575 HP 800 HP

Emission Standards

Emissions U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final) 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 U.S. EPA Tier 4 Final, EU Stage V

General

Engine Configuration Inline 6, 4-Stroke-Cycle Diesel Inline 4, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel V-12, 4-Stroke-Cycle Diesel
Bore 4.1 in 4.1 in 5.7 in 5.7 in
Stroke 5.3 in 5 in 7.2 in 6 in
Displacement 427.7 in³ 268.5 in³ 1104.5 in³ 1649.5 in³
Compression Ratio 16.5:1 16.2:1 16.0:1 16.0:1
Aspiration Series Turbocharged Aftercooled (TTA) Turbocharged Aftercooled (TA) Turbocharged Aftercooled (TA) Twin Turbocharged-Aftercooled (TTA)
Rotation from Flywheel End Counterclockwise Counterclockwise Counterclockwise Counterclockwise
Aftertreatment DOC+DPF+SCR - DOC+DPF+SCR DOC

Power Unit Dimensions

Length 69.6 in 53.5 in 99.7 in -
Width 36.1 in 29.5 in 48.9 in -
Height 57.5 in 37.9 in 79 in -
Weight 2204 lb 1146 lb 5842 lb -

Aftertreatment Dimensions

Length 30.4 in - - -
Width 31.2 in - 43.8 in -
Height 18.4 in - 25.7 in -
Weight 198 lb - 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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