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Power Rating
	Cat^® C0.7 Diesel Engine View Product	Cat® C4.4 Industrial Power Unit View Product Remove	Cat® C18 Industrial Power Unit (<560 kW) View Product Remove
Maximum Power	20.5 HP	129.4 HP	630 HP
Maximum Torque	37.1 lb-ft @ 2400 rpm	-	2177 lb-ft @ 1300 rpm
Rated Speed	2800-3600 rpm	2200 rpm	1800-2000 rpm
Minimum Power	16.4 HP	129.4 HP	575 HP
Emission Standards
Emissions	U.S. EPA Tier 4 Interim Equivalent	China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA	U.S. EPA Tier 4 Final, EU Stage V, China Nonroad Stage IV
Engine Dimensions - Approximate
Length	18.9 in	-	-
Width	14.6 in	-	-
Height	20.8 in	-	-
Weight - Net Dry - Basic Operating Engine Without Optional Attachments	156.5 lb	-	-
General
Engine Configuration	Inline 3, 4-Stroke-Cycle Diesel	Inline 4, 4-Stroke-Cycle Diesel	Inline 6, 4-Stroke-Cycle Diesel
Bore	2.6 in	4.1 in	5.7 in
Stroke	2.8 in	5 in	7.2 in
Displacement	46.4 in³	268.5 in³	1104.5 in³
Compression Ratio	23.5:1	16.2:1	16.0:1
Aspiration	Naturally Aspirated (NA)	Turbocharged Aftercooled (TA)	Turbocharged Aftercooled (TA)
Combustion System	Indirect Injection	-	-
Rotation from Flywheel End	Counterclockwise	Counterclockwise	Counterclockwise
Aftertreatment	-	-	DOC+DPF+SCR
Power Unit Dimensions
Length	-	53.5 in	99.7 in
Width	-	29.5 in	48.9 in
Height	-	37.9 in	79 in
Weight	-	1146 lb	5842 lb
Aftertreatment Dimensions
Width	-	-	43.8 in
Height	-	-	25.7 in
Weight	-	-	591 lb
Aftertreatment Dimensions*
Diameter	-	-	13 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)