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Power Rating
	Cat® C18 Industrial Power Unit View Product	Cat® C27 Industrial Power Unit View Product Remove	Cat® C18 Industrial Power Unit (<560 kW) View Product Remove
Maximum Power	630 HP	950 HP	630 HP
Rated Speed	1800-2100	1800 rpm	1800-2000 rpm
Minimum Power	575 HP	800 HP	575 HP
Maximum Torque	-	3211 lb-ft @ 1200 rpm	2177 lb-ft @ 1300 rpm
Emission Standards
Emissions	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	U.S. EPA Tier 4 Final, EU Stage V, China Nonroad Stage IV
General
Engine Configuration	Inline 6, 4-Stroke-Cycle Diesel	V-12, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel
Bore	5.7 in	5.7 in	5.7 in
Stroke	7.2 in	6 in	7.2 in
Displacement	1104.5 in³	1649.5 in³	1104.5 in³
Compression Ratio	16.3:1	16.0:1	16.0:1
Aspiration	Turbocharged Aftercooled (TA)	Twin Turbocharged-Aftercooled (TTA)	Turbocharged Aftercooled (TA)
Rotation from Flywheel End	Counterclockwise	Counterclockwise	Counterclockwise
Aftertreatment	-	DOC	DOC+DPF+SCR
Power Unit Dimensions
Length	54.6 in	-	99.7 in
Width	36.3 in	-	48.9 in
Height	48.9 in	-	79 in
Weight	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)