C4.4 ACERT™

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


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


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


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


BENEFITS & FEATURES
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.

EQUIPMENT
Standard Equipment

Air Inlet System
  • Standard air cleaners
Control System
  • Full electronic control system, all connectors and wiring looms waterproof and designed to withstand harsh off-highway environments
  • Flexible and configurable software features and well-supported SAE J1939 CAN bus enables highly integrated machines
Cooling System
  • Top tank temperature 108° C (226° F) as standard to minimize cooling pack size
  • 50:50 water glycol mix
  • Guidance on cooling system design available through your dealer to ensure equipment reliability
Flywheels and Flywheel Housing
  • Wide choice of drivetrain interfaces, including SAE No. 2 and SAE No. 3 configurations
Fuel System
  • Electronic high pressure common rail
  • ACERT™ Technology
  • Innovative filter design to ensure maximum protection of the engine
Lube System
  • Wide choice of sumps for different applications
Power Take Off
  • SAE A and SAE B flanges on left-hand side. Additional SAE A flange available on left-hand side. Engine power can also be taken from the front of the engine on some applications. Factory fitted compressors are also available.
General
  • Available with or without a balancer
  • Paint: Caterpillar yellow, with optional colors available at request
U.S. EPA Tier 4 Final, EU Stage IV Aftertreatment / Clean Emissions Control Equipment
  • Diesel Oxidation Catalyst (DOC) / Selective Catalytic Reduction (SCR)
  • Diesel Particulate Filter (DPF) / Selective Catalytic Reduction (SCR)
U.S. EPA Tier 4 Interim, EU Stage IIIB Aftertreatment / Clean Emissions Control Equipment
  • Clean Emissions Module (CEM), consisting of Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC)
  • No ash service requirement
  • Passive regeneration


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