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Industrial

Cat® C4.4 Industrial Power Unit

  • Minimum Power
    100.0 bhp
  • Maximum Power
    188 HP
  • Maximum Power
    173.5 bhp
  • Maximum Torque
    601 lb-ft @ 1400 rpm
Power Rating
Minimum Power
100.0 bhp
Maximum Power
188 HP
Maximum Power
173.5 bhp
Maximum Torque
601 lb-ft @ 1400 rpm
Rated Speed
2000 - 2200 rpm
Minimum Power
137 HP
Rated Speed
2200 rpm
Emission Standards
Emissions
U.S. EPA Tier 4 Final, EU Stage IV
Emissions
EU Stage V, U.S. EPA Tier 4 Final, Japan 2014 (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
60.3 in
Width
34.2 in
Height
53.7 in
Weight
1559 lb
Aftertreatment Dimensions
Width
27.4 in
Height
16.9 in
Weight
176 lb
Aftertreatment Dimensions*
Diameter
10.6 in
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
    • 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 V AFTERTREATMENT, JAPAN 2014 (TIER 4 FINAL) / CLEAN EMISSIONS CONTROL EQUIPMENT
    • Diesel Oxidation Catalyst (DOC) / Diesel Particulate Filter (DPF) / Selective Catalytic Reduction (SCR)
    • No ash service requirement
    • Passive regeneration