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Power Rating
	Cat^® C7.1 ACERT™ Diesel Engine View Product	Cat® C4.4 Industrial Power Unit View Product Remove	Cat^® 3516C Industrial Power Unit View Product Remove
Maximum Power	320 HP	108.6 HP	2100 HP
Maximum Torque	935 lb-ft @ 1400 rpm	-	-
Rated Speed	2200 rpm	2200 rpm	1750 rpm
Minimum Power	172 HP	81.8 HP	2100 HP
Emission Standards
Emissions	U.S. EPA & CARB Tier 4 Final, EU Stage V	UN ECE R96 Stage IIIA	U.S. EPA Tier 2 Nonroad equivalent emission standards (not currently EPA certified)
General
Engine Configuration	In-Line 6	Inline 4, 4-Stroke-Cycle Diesel	V-16, 4-Stroke-Cycle Diesel
Bore	4.1 in	4.1 in	6.7 in
Stroke	5.3 in	5 in	8.5 in
Displacement	427.7 in³	268.5 in³	4760 in³
Compression Ratio	16.5:1	18.2:1	13.0:1
Aspiration	Turbocharged-Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)	Turbocharged (T)	Turbocharged Aftercooled
Combustion System	Direct Injection	-	-
Rotation from Flywheel End	Counterclockwise	Counterclockwise	Counterclockwise
Aftertreatment	DOC+DPF+SCR	-	-
Engine Dimensions - Approximate
Length	41.9 in	-	129 in
Width	31.4 in	-	60 in
Height	35.9 in	-	81 in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments	1658 lb	-	17284 lb
Aftertreatment Dimensions
Length	29 in	-	-
Width	30.3 in	-	-
Height	18.1 in	-	-
Weight	236 lb	-	-
Aftertreatment Dimensions*
Diameter	13.3 in	-	-
Power Unit Dimensions
Length	-	49.6 in	-
Width	-	28.9 in	-
Height	-	38 in	-
Weight	-	1025 lb	-