Cat® C4.4 ACERT™ Industrial Power Unit
US
Metric
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.
Power Rating
Minimum Power
100.00 bhp
74.50 bkW
Maximum Power
173.50 bhp
129.40 bkW
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
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. Final dimensions dependent on selected options)
Diameter
244.9-270.3 mm (9.6-10.6 in)
Aftertreatment Dimensions - Approximate
Width
365-695 mm (14.3-27.4 in)
Height
279-430 mm (11-16.9 in)
Aftertreatment Dimensions (Approximate. Final dimensions dependent on selected options)
Weight
34-80 kg (75-176.4 lb)
Power Rating
Minimum Power
100.00 HP
74.50 kW
Maximum Power
173.50 HP
129.40 kW
Rated Speed
2200 rpm
Emission Standards
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
16.0:2
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)
Aftertreatment Dimensions - Approximate
Diameter
244.9-270.3 mm (9.6-10.6 in)
Weight
34-80 kg (75-176.4 lb)
Width
365-695 mm (14.3-27.4 in)
Power Rating
Maximum Torque
553.20 lb-ft @ 1400 rpm
750.00 Nm @ 1400 rpm
General
Bore
4.10 in
105.00 mm
Stroke
5.00 in
127.00 mm
Displacement
268.50 in³
4.40 l
Power Unit Dimensions
Weight
1543.00 lb
700.00 kg
Width
32.30 in
820.00 mm
Aftertreatment Dimensions
Width
27.40 in
695.00 mm
Weight
176.00 lb
80.00 kg
Diameter
10.60 in
270.00 mm
Height
16.90 in
430.00 mm
Power Unit Dimensions
Height
45.30 in
1150.00 mm
Length
56.40 in
1433.00 mm
General
Aftertreatment
DOC+DPF+SCR
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.
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
WARNING