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Cat® C4.4 Industrial Power Unit
Cat® C4.4 Industrial Power Unit
Cat® 3516C Industrial Power Unit
Cat® C7.1 Industrial Power Unit
Cat® C27 Industrial Power Unit

Power Rating

Maximum Power 129.4 HP 108.6 HP 2100 HP 302 HP 950 HP
Rated Speed 2200 rpm 2200 rpm 1750 rpm 1800-2200 rpm 1800 rpm
Minimum Power 129.4 HP 81.8 HP 2100 HP 202 HP 800 HP
Maximum Torque - - - 940 lb-ft @ 1400 rpm 3211 lb-ft @ 1200 rpm

Emission Standards

Emissions China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA UN ECE R96 Stage IIIA U.S. EPA Tier 2 Nonroad equivalent emission standards (not currently EPA certified) U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final) U.S. EPA Tier 4 Final, EU Stage V

General

Engine Configuration Inline 4, 4-Stroke-Cycle Diesel Inline 4, 4-Stroke-Cycle Diesel V-16, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel V-12, 4-Stroke-Cycle Diesel
Bore 4.1 in 4.1 in 6.7 in 4.1 in 5.7 in
Stroke 5 in 5 in 8.5 in 5.3 in 6 in
Displacement 268.5 in³ 268.5 in³ 4760 in³ 427.7 in³ 1649.5 in³
Compression Ratio 16.2:1 18.2:1 13.0:1 16.5:1 16.0:1
Aspiration Turbocharged Aftercooled (TA) Turbocharged (T) Turbocharged Aftercooled Series Turbocharged Aftercooled (TTA) Twin Turbocharged-Aftercooled (TTA)
Rotation from Flywheel End Counterclockwise Counterclockwise Counterclockwise Counterclockwise Counterclockwise
Aftertreatment - - - DOC+DPF+SCR DOC

Power Unit Dimensions

Length 53.5 in 49.6 in - 69.6 in -
Width 29.5 in 28.9 in - 36.1 in -
Height 37.9 in 38 in - 57.5 in -
Weight 1146 lb 1025 lb - 2204 lb -

Engine Dimensions - Approximate

Length - - 129 in - -
Width - - 60 in - -
Height - - 81 in - -
Weight - Net Dry - Basic Operating Engine Without Optional Attachments - - 17284 lb - -

Aftertreatment Dimensions

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