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Power Rating
	Cat® C4.4 Industrial Power Unit View Product	Cat^® C11 Industrial Power Unit View Product Remove	Cat^® C15 Industrial Power Unit View Product Remove	Cat^® C7.1 Industrial Power Unit View Product Remove
Maximum Power	129.4 HP	451 HP	540 HP	302 HP
Rated Speed	2200 rpm	1800-2100 rpm	1800-2100 rpm	1800-2200 rpm
Minimum Power	129.4 HP	325 HP	440 HP	202 HP
Maximum Torque	-	-	-	940 lb-ft @ 1400 rpm
Emission Standards
Emissions	China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA	Brazil MAR-1, UN R96 Stage IIIA, U.S. EPA Tier 3	China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent	U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final)
General
Engine Configuration	Inline 4, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel
Bore	4.1 in	5.1 in	5.4 in	4.1 in
Stroke	5 in	5.5 in	6.8 in	5.3 in
Displacement	268.5 in³	677.4 in³	927.6 in³	427.7 in³
Compression Ratio	16.2:1	17.2:1	18.0:1	16.5:1
Aspiration	Turbocharged Aftercooled (TA)	Turbocharged Aftercooled (TA)	Turbocharged Aftercooled (TA)	Series Turbocharged Aftercooled (TTA)
Rotation from Flywheel End	Counterclockwise	Counterclockwise	Counterclockwise	Counterclockwise
Aftertreatment	-	-	-	DOC+DPF+SCR
Power Unit Dimensions
Length	53.5 in	92 in	96.4 in	69.6 in
Width	29.5 in	50 in	51.8 in	36.1 in
Height	37.9 in	71 in	103.5 in	57.5 in
Weight	1146 lb	3730 lb	4532 lb	2204 lb
Aftertreatment Dimensions
Length	-	-	-	30.4 in
Width	-	-	-	31.2 in
Height	-	-	-	18.4 in
Weight	-	-	-	198 lb