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The Cat® C4.4 ACERT™ Industrial Power Unit is offered in ratings ranging from 74.5-129.4 bkW (100-173.5 bhp) @ 2200 rpm, which meet U.S. EPA Tier 4 Final, EU Stage IV emission standards. Tier 4 Interim Equivalent and Stage IIIB Equivalent ratings are also available using Flex options. Conveniently pre-configured for a wide range of applications, the Cat® Industrial Power Unit is a complete power package containing a radiator, flywheel, alternator and alternator wiring completely pre-assembled for fast, straightforward installation in a number of OEM, customer and packager applications. These fuel efficient units are ready made for irrigation, industrial, mining and other pump applications.

Cat Specs
Photos

General

Bore
105 mm (4.1 in)
Stroke
127 mm (5.0 in)
Displacement
4.4 L (268.5 in³)
Compression Ratio
16:2
Rotation from Flywheel End
Counterclockwise
Cooling System - Capacity
9-9.4 L (8.2-8.5 qt)
Lube System - Refill
5.2-13.5 L (5.5-14.27 qt)
Engine Configuration
Inline 4, 4-Stroke-Cycle Diesel
Aspiration
Turbocharged Aftercooled (TA) or Twin Turbocharged Aftercooled (TTA)

Emission Standards

Emissions
U.S. EPA Tier 4 Final, EU Stage IV

Power Rating

Minimum Power
100 BHP
Maximum Power
173.5 BHP
Rated Speed
2200 rpm

Power Unit Dimensions - Approximate

Weight - Approximate, Net Dry - Standard Configuration Without Oil, Cooling, Clutch, Compressor, A/C
670-700 kg (1477-1543 lb)
Height
1126-1150 mm (44.3-45.3 in)
Width
795-820 mm (31.3-32.3 in)
Length
1433 mm (56.4 in)