Industrial Power Systems

Cat® C4.4 Industrial Power Unit

Product description

The C4.4 IPU engine is a common rail direct injection engine with either a single turbo or twin turbo chargecooled air system. It meets U.S. EPA Tier 4 Final, EU Stage V andJapan 2014 (Tier 4 Final) emission standards. For ease of installation, the IPU provides full aftertreatment mounting, an integrated cooling system and inlet air filter mounted to the IPU.

Power Rating
  • Maximum Power - 188HP
  • Maximum Torque - 609lb-ft @ 1400 rpm
  • Rated Speed - 2200 rpm
  • Minimum Power - 137HP
Emission Standards
  • Emissions - EU Stage V, U.S. EPA Tier 4 Final
  • Engine Configuration - Inline 4, 4-Stroke-Cycle Diesel
  • Bore - 4.1in
  • Stroke - 5in
  • Displacement - 268.5in³
  • Compression Ratio - 16.0:2
  • Aspiration - Turbocharged Aftercooled (TA) or Twin Turbocharged Aftercooled (TTA)
  • Rotation from Flywheel End - Counterclockwise
  • Aftertreatment - DOC+DPF+SCR
Power Unit Dimensions
  • Length - 60.3in
  • Width - 34.2in
  • Height - 53.7in
  • Weight - 1559lb
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
    • 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 / Clean Emissions Control Equipment
    • Diesel Oxidation Catalyst (DOC) / Diesel Particulate Filter (DPF) / Selective Catalytic Reduction (SCR)
    • No ash service requirement
    • Passive regeneration
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