C4.4 ACERT™

< Back

Overview

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.

Power Rating

Units:
Minimum Power 100.0 BHP 74.5 bkW Less
Maximum Power 173.5 BHP 129.4 bkW Less
Rated Speed 2200 rpm 2200 rpm Less

Emission Standards

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

General

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

Power Unit Dimensions - Approximate

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

Aftertreatment Dimensions - Approximate

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

Reliable, Quiet and Durable Power

World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.

High Performance

Series turbocharging with smart wastegate available on specific ratings for fast response, high power, and increased torque.

Fuel Efficiency

Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.

Fuel & Oil

Tier 4 Interim or Tier 4 Final, Stage IIIB or Stage IV engines require Ultra Low Sulfur Diesel (ULSD) fuel containing a maximum of 15 ppm sulfur, and new oil formulations to support the new technology. Cat® engines are designed to accommodate B20 biofuel. Your Cat dealer can provide more information regarding fuel and oil.

Broad Application Range

Industry leading range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.

Package Size

Ideal for equipment with narrow engine compartments. Multiple installation options minimize total package size.

World-class Product Support Offered Through Global Cat Dealer Network

  • Scheduled maintenance, including SOSSM sample
  • Customer Support Agreements (CSA)
  • Caterpillar Extended Service Coverage (ESC)
  • Superior dealer service network
  • Extended dealer service network through the Cat Industrial Service Distributor (ISD) program

Tier 4 Final, Stage IV Aftertreatment Features


Regeneration. The DOC/SCR modular design offers a simple, compact package while providing high levels of performance. A DOC/DPF/SCR option is available for higher power machines. While in use, both DOC/SCR an DOC/DPF/SCR systems offer transparent operation to the user.


Mounting. Extensive range of inlets and outlets, as well as remote and on-engine installations, provide flexibility for many installations.
Service. Both DOC/SCR an DOC/DPF/SCR systems are service-free for the emissions life of the engine.