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Power Rating
	Cat^® C7.1 Diesel Engine View Product	Cat® C7.1 Industrial Power Unit View Product Remove	Cat® C4.4 Industrial Power Unit View Product Remove	Cat® C27 Industrial Power Unit View Product Remove
Maximum Power	217 HP	275 HP	108.6 HP	950 HP
Maximum Torque	663 lb-ft @ 1400 rpm	774 lb-ft @ 1400 rpm	-	3211 lb-ft @ 1200 rpm
Rated Speed	1950-2200 rpm	116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm	2200 rpm	1800 rpm
Minimum Power	150 HP	156 HP	81.8 HP	800 HP
Emission Standards
Emissions	China Nonroad Stage III, UN ECE R96 Stage IIIA	China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA	UN ECE R96 Stage IIIA	U.S. EPA Tier 4 Final, EU Stage V
Engine Dimensions - Approximate
Length	44.9 in	-	-	-
Width	28.4 in	-	-	-
Height	32.3 in	-	-	-
Weight - Net Dry - Basic Operating Engine Without Optional Attachments	1118 lb	-	-	-
General
Engine Configuration	Inline 6, 4-Stroke-Cycle	Inline 6, 4-Stroke-Cycle Diesel	Inline 4, 4-Stroke-Cycle Diesel	V-12, 4-Stroke-Cycle Diesel
Bore	4.1 in	4.1 in	4.1 in	5.7 in
Stroke	5.3 in	5.3 in	5 in	6 in
Displacement	427.7 in³	427.7 in³	268.5 in³	1649.5 in³
Compression Ratio	18.2:1	16.8:1	18.2:1	16.0:1
Aspiration	Turbocharged Aftercooled (TA)	Turbocharged Aftercooled (TA)	Turbocharged (T)	Twin Turbocharged-Aftercooled (TTA)
Combustion System	Direct Injection	-	-	-
Rotation from Flywheel End	Counterclockwise	Counterclockwise	Counterclockwise	Counterclockwise
Aftertreatment	-	-	-	DOC
Power Unit Dimensions
Length	-	68 in	49.6 in	-
Width	-	31 in	28.9 in	-
Height	-	44.8 in	38 in	-
Weight	-	1737 lb	1025 lb	-