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Power Rating
	Cat^® C4.4 Diesel Engine View Product	Cat® C27 Industrial Power Unit View Product Remove	Cat® C7.1 Industrial Power Unit View Product Remove
Maximum Power	142 HP	950 HP	275 HP
Maximum Torque	411.2 lb-ft @ 1400 rpm	3211 lb-ft @ 1200 rpm	774 lb-ft @ 1400 rpm
Rated Speed	2200 rpm	1800 rpm	116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm
Minimum Power	91.2 HP	800 HP	156 HP
Emission Standards
Emissions	China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA	U.S. EPA Tier 4 Final, EU Stage V	China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA
Engine Dimensions - Approximate
Length	24.8 in	-	-
Width	24.6 in	-	-
Height	37.7 in	-	-
Weight - Net Dry - Basic Operating Engine Without Optional Attachments	794 lb	-	-
General
Engine Configuration	Inline 4, 4-Stroke-Cycle Diesel	V-12, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel
Bore	4.1 in	5.7 in	4.1 in
Stroke	5 in	6 in	5.3 in
Displacement	269 in³	1649.5 in³	427.7 in³
Compression Ratio	16.9:1	16.0:1	16.8:1
Aspiration	Turbocharged (T) or Turbocharged Aftercooled (TA)	Twin Turbocharged-Aftercooled (TTA)	Turbocharged Aftercooled (TA)
Combustion System	Direct Injection	-	-
Rotation from Flywheel End	Counterclockwise	Counterclockwise	Counterclockwise
Aftertreatment	-	DOC	-
Power Unit Dimensions
Length	-	-	68 in
Width	-	-	31 in
Height	-	-	44.8 in
Weight	-	-	1737 lb