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Power Rating
	Cat^® C7.1 Industrial Power Unit View Product	Cat® C27 Industrial Power Unit View Product Remove	Cat^® C15 Industrial Power Unit View Product Remove
Maximum Power	302 HP	950 HP	540 HP
Maximum Torque	940 lb-ft @ 1400 rpm	3211 lb-ft @ 1200 rpm	-
Rated Speed	1800-2200 rpm	1800 rpm	1800-2100 rpm
Minimum Power	202 HP	800 HP	440 HP
Emission Standards
Emissions	U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final)	U.S. EPA Tier 4 Final, EU Stage V	China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent
General
Engine Configuration	Inline 6, 4-Stroke-Cycle Diesel	V-12, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel
Bore	4.1 in	5.7 in	5.4 in
Stroke	5.3 in	6 in	6.8 in
Displacement	427.7 in³	1649.5 in³	927.6 in³
Compression Ratio	16.5:1	16.0:1	18.0:1
Aspiration	Series Turbocharged Aftercooled (TTA)	Twin Turbocharged-Aftercooled (TTA)	Turbocharged Aftercooled (TA)
Rotation from Flywheel End	Counterclockwise	Counterclockwise	Counterclockwise
Aftertreatment	DOC+DPF+SCR	DOC	-
Power Unit Dimensions
Length	69.6 in	-	96.4 in
Width	36.1 in	-	51.8 in
Height	57.5 in	-	103.5 in
Weight	2204 lb	-	4532 lb
Aftertreatment Dimensions
Length	30.4 in	-	-
Width	31.2 in	-	-
Height	18.4 in	-	-
Weight	198 lb	-	-