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Power Rating
	Cat® C4.4 Industrial Power Unit View Product	Cat® C18 Industrial Power Unit View Product Remove	Cat® C15 Industrial Power Unit View Product Remove
Maximum Power	108.6 HP	630 HP	580 HP
Rated Speed	2200 rpm	1800-2100	1800-2100 rpm
Minimum Power	81.8 HP	575 HP	475 HP
Maximum Torque	-	-	1958 lb-ft @ 1400 rpm
Emission Standards
Emissions	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, Japan 2014 (Tier 4 Final), Korea Stage V, China Nonroad 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	5.7 in	5.4 in
Stroke	5 in	7.2 in	6.7 in
Displacement	268.5 in³	1104.5 in³	927.6 in³
Compression Ratio	18.2:1	16.3:1	17.0:1
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	54.6 in	98 in
Width	28.9 in	36.3 in	48.4 in
Height	38 in	48.9 in	79 in
Weight	1025 lb	4844 lb	5842 lb
Aftertreatment Dimensions
Width	-	-	43.8 in
Height	-	-	25.8 in
Weight	-	-	591 lb
Aftertreatment Dimensions*
Diameter	-	-	14 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)