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Power Rating
	Cat^® C7.1 Industrial Power Unit View Product	Cat® C4.4 Industrial Power Unit View Product Remove	Cat^® C32 Industrial Power Unit View Product Remove	Cat® C27 Industrial Power Unit View Product Remove
Maximum Power	302 HP	129.4 HP	1000 HP	950 HP
Maximum Torque	940 lb-ft @ 1400 rpm	-	3825 lb-ft @ 1200 rpm	3211 lb-ft @ 1200 rpm
Rated Speed	1800-2200 rpm	2200 rpm	1800 rpm	1800 rpm
Minimum Power	202 HP	129.4 HP	1000 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 and EU Stage V	U.S. EPA Tier 4 Final, EU Stage V
General
Engine Configuration	Inline 6, 4-Stroke-Cycle Diesel	Inline 4, 4-Stroke-Cycle Diesel	V-12	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	6.4 in	6 in
Displacement	427.7 in³	268.5 in³	1958.9 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)	Twin Turbocharged Aftercooled (TTA)	Twin Turbocharged-Aftercooled (TTA)
Rotation from Flywheel End	Counterclockwise	Counterclockwise	Counterclockwise	Counterclockwise
Aftertreatment	DOC+DPF+SCR	-	DOC	DOC
Cycle	-	-	4	-
Combustion System	-	-	Direct Injection	-
Cooling System	-	-	liquid	-
Power Unit Dimensions
Length	69.6 in	53.5 in	100.7 in	-
Width	36.1 in	29.5 in	64.4 in	-
Height	57.5 in	37.9 in	77.6 in	-
Weight	2204 lb	1146 lb	-	-
Aftertreatment Dimensions
Length	30.4 in	-	-	-
Width	31.2 in	-	-	-
Height	18.4 in	-	-	-
Weight	198 lb	-	-	-