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Power Rating
	Cat® C4.4 Industrial Power Unit View Product	Cat® C7.1 Industrial Power Unit View Product Remove	Cat® C18 Industrial Power Unit (<560 kW) View Product Remove
Maximum Power	108.6 HP	275 HP	630 HP
Rated Speed	2200 rpm	116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm	1800-2000 rpm
Minimum Power	81.8 HP	156 HP	575 HP
Maximum Torque	-	774 lb-ft @ 1400 rpm	2177 lb-ft @ 1300 rpm
Emission Standards
Emissions	UN ECE R96 Stage IIIA	China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA	U.S. EPA Tier 4 Final, EU Stage V, China Nonroad Stage IV
General
Engine Configuration	Inline 4, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel
Bore	4.1 in	4.1 in	5.7 in
Stroke	5 in	5.3 in	7.2 in
Displacement	268.5 in³	427.7 in³	1104.5 in³
Compression Ratio	18.2:1	16.8:1	16.0:1
Aspiration	Turbocharged (T)	Turbocharged Aftercooled (TA)	Turbocharged Aftercooled (TA)
Rotation from Flywheel End	Counterclockwise	Counterclockwise	Counterclockwise
Aftertreatment	-	-	DOC+DPF+SCR
Power Unit Dimensions
Length	49.6 in	68 in	99.7 in
Width	28.9 in	31 in	48.9 in
Height	38 in	44.8 in	79 in
Weight	1025 lb	1737 lb	5842 lb
Aftertreatment Dimensions
Width	-	-	43.8 in
Height	-	-	25.7 in
Weight	-	-	591 lb
Aftertreatment Dimensions*
Diameter	-	-	13 in
PETU Dimensions - Tier 4 Final Only
Length	-	-	33.6 in
Width	-	-	11.3 in
Height	-	-	21.7 in
Weight	-	-	42.8 lb
Volume Capacity	-	-	51.1 qt (US)