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Cat® C4.4 Industrial Power Unit

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.

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SPECIFICATION SUMMARY
  • Minimum Power 100.0 bhp
  • Maximum Power 173.5 bhp
  • Emissions U.S. EPA Tier 4 Final, EU Stage IV
  • Rated Speed 2200 rpm

PRICE (USD)
Call 440-838-7348 for rate information

Power Rating

  • Minimum Power
    100.0 bhp
  • Maximum Power
    173.5 bhp
  • Rated Speed
    2200 rpm
  • Minimum Power
    137 HP
  • Maximum Power
    188 HP
  • Rated Speed
    2200 rpm
  • Maximum Torque
    609 lb-ft @ 1400 rpm

Emission Standards

  • Emissions
    U.S. EPA Tier 4 Final, EU Stage IV
  • Emissions
    EU Stage V, 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
    4.1 in
  • Stroke
    5 in
  • Displacement
    268.5 in³

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

  • Weight
    1559 lb

Aftertreatment Dimensions

  • Weight
    176 lb

Aftertreatment Dimensions*

  • Diameter
    10.6 in

Reliable, Quiet and Durable Power

Global manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.

Exhaust System

Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR) system supplied installed on engine. Zero downtime due to regeneration.

World-class Product Support Offered Through Global Cat Dealer Network

Superior dealer service network, Customer Support Agreements (CSA) and Cat® Extended Service Coverage (ESC).

Low-Cost Maintenance

Worldwide service delivers ease of maintenance and simplifies the servicing routine. Hydraulic tappets, multi-vee belts, service free DPF and 500-hour oil change intervals enable low-cost maintenance.

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

Optional Equipment:

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