Skip to main content Skip to navigation
AgAgriculture Blog IconBehind the Scenes Blog IconConstruction Blog IconEquipment Maintenance Blog IconPower Systems Blog Icon Thumbs Down Thumbs Up! Small Business Blog IconTachnology Blog IconConstructioncontrol-smallcost-smallefficiency-smallflexibility-smallHoursHours Location HoursMapMapMenu AgMenu AttachmentsMenu BlogMenu Blog Menu CareersMenu ChecklistMenu ConstructionMenu MaintenanceMenu NewMenu PowerMenu RebuildsMenu RentMenu ServiceMenu TechnologyMenu TestimonialsMenu Training Menu Truck Menu UsedNewArtboard 1Parts Phone PhonePower Systemsproductivity-smallRentalRepSafetyServiceSpecialsTechtestimonial-iconToolsTrainingTruckUsed

Ziegler CAT

Caterpillar

Cat® C4.4 ACERT™ Industrial Power Unit

The Cat® C4.4 ACERT™ 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.

Photos

360° View

Exterior

360° Exterior view. Double click on the image to zoom in on any area of the product.

Features

Specifications

  • Power Rating
    Spec Value
    Maximum Power 173.5 HP
    Maximum Torque 553.2 lb-ft @ 1400 rpm
    Rated Speed 2200 rpm
    Minimum Power 100 HP
  • Emission Standards
    Spec Value
    Emissions U.S. EPA Tier 4 Final
  • General
    Spec Value
    Engine Configuration Inline 4, 4-Stroke-Cycle Diesel
    Bore 4.1 in
    Stroke 5 in
    Displacement 268.5 in³
    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
    Spec Value
    Length 56.4 in
    Width 32.3 in
    Height 45.3 in
    Weight 1543 lb
  • Aftertreatment Dimensions
    Spec Value
    Width 27.4 in
    Height 16.9 in
    Diameter 10.6 in
    Weight 176 lb

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