Home / Power Systems / Industrial / Cat® C4.4 ACERT™ Industrial Power Unit

C4.4 Tier 4 Industrial Power Units - Highly Regulated

Cat® C4.4 ACERT™ Industrial Power Unit

Request a Quote

Overview

The Cat^® C4.4 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.

Download Product Brochure Print

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 mo...

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 SOS^SM 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.

Power Rating

Minimum Power: 100.0bhp
Maximum Power: 173.5bhp
Rated Speed: 2200 rpm
Minimum Power: 100HP
Maximum Power: 173.5HP
Rated Speed: 2200 rpm
Maximum Torque: 553.2lb-ft @ 1400 rpm

Emission Standards

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

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)
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: 16.0:2
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)
Bore: 4.1in
Stroke: 5in
Displacement: 268.5in³
Aftertreatment: DOC+DPF+SCR

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

Diameter: 244.9-270.3 mm (9.6-10.6 in)
Weight: 34-80 kg (75-176.4 lb)

Power Unit Dimensions - Approximate

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)

Aftertreatment Dimensions - Approximate

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)

Power Unit Dimensions

Length: 56.4in
Width: 32.3in
Height: 45.3in
Weight: 1543lb

Aftertreatment Dimensions

Width: 27.4in
Height: 16.9in
Weight: 176lb

Aftertreatment Dimensions*

Diameter: 10.6in

Standard/Optional Features

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

Optional Equipment:

See how C4.4 compares against frequently compared products

C4.4 Industrial

Selected Model

C0.5 Industrial

View Full Specs

C0.7 Industrial