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Industrial

Cat® C4.4 ACERT™ Industrial Power Unit

  • Minimum Power
    100.0 bhp
  • Maximum Power
    173.5 HP
  • Maximum Power
    173.5 bhp
  • Maximum Torque
    553.2 lb-ft @ 1400 rpm
Power Rating
Minimum Power
100.0 bhp
Maximum Power
173.5 HP
Maximum Power
173.5 bhp
Maximum Torque
553.2 lb-ft @ 1400 rpm
Rated Speed
2200 rpm
Minimum Power
100 HP
Rated Speed
2200 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
Engine Configuration
Inline 4, 4-Stroke-Cycle Diesel
Bore
105 mm (4.1 in)
Bore
105 mm (4.1 in)
Bore
4.1 in
Stroke
5 in
Stroke
127 mm (5.0 in)
Stroke
127 mm (5.0 in)
Displacement
268.5 in³
Compression Ratio
16.0:2
Displacement
4.4 L (268.5 in³)
Displacement
4.4 L (268.5 in³)
Aspiration
Turbocharged Aftercooled (TA) or Twin Turbocharged Aftercooled (TTA)
Aspiration
Turbocharged Aftercooled (TA) or Twin Turbocharged Aftercooled (TTA)
Compression Ratio
16:2
Rotation from Flywheel End
Counterclockwise
Aftertreatment
DOC+DPF+SCR
Rotation
Counterclockwise
Cooling System Capacity
9-9.4 L (8.2-8.5 qt)
Cooling System
9-9.4 L (8.2-8.5 qt)
Lube System
5.2-13.5 L (5.5-14.27 qt)
Lube System
5.2-13.5 L (5.5-14.27 qt)
Power Unit Dimensions
Length
56.4 in
Width
32.3 in
Height
45.3 in
Weight
1543 lb
Aftertreatment Dimensions
Width
27.4 in
Height
16.9 in
Diameter
10.6 in
Weight
176 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
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)
Weight
34-80 kg (75-176.4 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)
  • 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