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Power Rating
	Cat® C7.1 Industrial Power Unit View Product	Cat^® C32 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	275 HP	1000 HP	129.4 HP	950 HP
Maximum Torque	774 lb-ft @ 1400 rpm	3825 lb-ft @ 1200 rpm	-	3211 lb-ft @ 1200 rpm
Rated Speed	116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm	1800 rpm	2200 rpm	1800 rpm
Minimum Power	156 HP	1000 HP	129.4 HP	800 HP
Emission Standards
Emissions	China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA	U.S. EPA Tier 4 Final and EU Stage V	China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA	U.S. EPA Tier 4 Final, EU Stage V
General
Engine Configuration	Inline 6, 4-Stroke-Cycle Diesel	V-12	Inline 4, 4-Stroke-Cycle Diesel	V-12, 4-Stroke-Cycle Diesel
Bore	4.1 in	5.7 in	4.1 in	5.7 in
Stroke	5.3 in	6.4 in	5 in	6 in
Displacement	427.7 in³	1958.9 in³	268.5 in³	1649.5 in³
Compression Ratio	16.8:1	16.0:1	16.2:1	16.0:1
Aspiration	Turbocharged Aftercooled (TA)	Twin Turbocharged Aftercooled (TTA)	Turbocharged Aftercooled (TA)	Twin Turbocharged-Aftercooled (TTA)
Rotation from Flywheel End	Counterclockwise	Counterclockwise	Counterclockwise	Counterclockwise
Aftertreatment	-	DOC	-	DOC
Cycle	-	4	-	-
Combustion System	-	Direct Injection	-	-
Cooling System	-	liquid	-	-
Power Unit Dimensions
Length	68 in	100.7 in	53.5 in	-
Width	31 in	64.4 in	29.5 in	-
Height	44.8 in	77.6 in	37.9 in	-
Weight	1737 lb	-	1146 lb	-