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Cat® C4.4 ACERT™ Industrial Power Unit
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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.

Specifications
Standard Equipment

Emission Standards

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

Aftertreatment Dimensions (Approximate. Final dimensions dependent on selected options)

Diameter
244.9-270.3 mm (9.6-10.6 in)
Width
365-695 mm (14.3-27.4 in)
Height
279-430 mm (11-16.9 in)
Weight
34-80 kg (75-176.4 lb)

General

Engine Configuration
Inline 4, 4-Stroke-Cycle Diesel
Bore
105 mm (4.1 in)
Stroke
127 mm (5.0 in)
Displacement
4.4 L (268.5 in³)
Aspiration
Turbocharged Aftercooled (TA) or Twin Turbocharged Aftercooled (TTA)
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)

Power Unit Dimensions (Approximate. Final dimensions dependent on selected options)

Length
1433 mm (56.4 in)
Width
795-820 mm (31.3-32.3 in)
Height
1126-1150 mm (44.3-45.3 in)
Weight - Approximate, Net Dry (Standard configuration without oil, cooling, clutch, compressor, A/C)
670-700 kg (1477-1543 lb)

Power Rating

Minimum Power
100.0 bhp
Maximum Power
173.5 bhp
Frequency
2200 rpm
  • Air Inlet System
  • Control System
  • Cooling System
  • Flywheels and Flywheel Housing
  • Fuel System
  • Lube System
  • Power Take Off
  • General
  • U.S. EPA Tier 4 Final, EU Stage IV Aftertreatment / Clean Emissions Control Equipment
  • U.S. EPA Tier 4 Interim, EU Stage IIIB Aftertreatment / Clean Emissions Control Equipment