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Power Rating
	Cat® C4.4 Industrial Power Unit View Product	Cat^® C9.3B Industrial Power Unit View Product Remove	Cat® C4.4 Industrial Power Unit View Product Remove	Cat^® C7.1 Industrial Power Unit View Product Remove
Maximum Power	129.4 HP	416 HP	108.6 HP	302 HP
Rated Speed	2200 rpm	1800-2200 rpm	2200 rpm	1800-2200 rpm
Minimum Power	129.4 HP	308 HP	81.8 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	UN ECE R96 Stage IIIA	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 4, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel
Bore	4.1 in	4.5 in	4.1 in	4.1 in
Stroke	5 in	5.9 in	5 in	5.3 in
Displacement	268.5 in³	567.5 in³	268.5 in³	427.7 in³
Compression Ratio	16.2:1	16.5:1	18.2:1	16.5:1
Aspiration	Turbocharged Aftercooled (TA)	Turbocharged Aftercooled (TA)	Turbocharged (T)	Series Turbocharged Aftercooled (TTA)
Rotation from Flywheel End	Counterclockwise	Counterclockwise	Counterclockwise	Counterclockwise
Aftertreatment	-	-	-	DOC+DPF+SCR
Power Unit Dimensions
Length	53.5 in	83 in	49.6 in	69.6 in
Width	29.5 in	43 in	28.9 in	36.1 in
Height	37.9 in	63 in	38 in	57.5 in
Weight	1146 lb	3265 lb	1025 lb	2204 lb
Aftertreatment Dimensions
Length	-	-	-	30.4 in
Width	-	-	-	31.2 in
Height	-	-	-	18.4 in
Weight	-	-	-	198 lb