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Power Rating
	Cat® C7.1 Industrial Power Unit View Product	Cat® C18 Industrial Power Unit View Product Remove	Cat® C18 Industrial Power Unit (<560 kW) View Product Remove
Maximum Power	275 HP	630 HP	630 HP
Maximum Torque	774 lb-ft @ 1400 rpm	-	2177 lb-ft @ 1300 rpm
Rated Speed	116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm	1800-2100	1800-2000 rpm
Minimum Power	156 HP	575 HP	575 HP
Emission Standards
Emissions	China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA	China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent or Non-Certified	U.S. EPA Tier 4 Final, EU Stage V, China Nonroad Stage IV
General
Engine Configuration	Inline 6, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel
Bore	4.1 in	5.7 in	5.7 in
Stroke	5.3 in	7.2 in	7.2 in
Displacement	427.7 in³	1104.5 in³	1104.5 in³
Compression Ratio	16.8:1	16.3:1	16.0:1
Aspiration	Turbocharged Aftercooled (TA)	Turbocharged Aftercooled (TA)	Turbocharged Aftercooled (TA)
Rotation from Flywheel End	Counterclockwise	Counterclockwise	Counterclockwise
Aftertreatment	-	-	DOC+DPF+SCR
Power Unit Dimensions
Length	68 in	54.6 in	99.7 in
Width	31 in	36.3 in	48.9 in
Height	44.8 in	48.9 in	79 in
Weight	1737 lb	4844 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)