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Power Rating
	Cat® C15 Industrial Power Unit View Product	Cat® C7.1 Industrial Power Unit View Product Remove	Cat® C4.4 Industrial Power Unit View Product Remove
Maximum Power	580 HP	275 HP	129.4 HP
Maximum Torque	1958 lb-ft @ 1400 rpm	774 lb-ft @ 1400 rpm	-
Rated Speed	1800-2100 rpm	116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm	2200 rpm
Minimum Power	475 HP	156 HP	129.4 HP
Emission Standards
Emissions	U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final), Korea Stage V, China Nonroad IV	China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA	China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA
General
Engine Configuration	Inline 6, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel	Inline 4, 4-Stroke-Cycle Diesel
Bore	5.4 in	4.1 in	4.1 in
Stroke	6.7 in	5.3 in	5 in
Displacement	927.6 in³	427.7 in³	268.5 in³
Compression Ratio	17.0:1	16.8:1	16.2:1
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	98 in	68 in	53.5 in
Width	48.4 in	31 in	29.5 in
Height	79 in	44.8 in	37.9 in
Weight	5842 lb	1737 lb	1146 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)	-	-