Cat® C4.4 Industrial Power Unit

The Cat® C4.4 Industrial Power Unit is offered in ratings ranging from 61-81 bkW (81.8-108.6 bhp) @ 2200 rpm. These ratings meet U.S. EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. 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.

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Maximum Power 108.6HP
Rated Speed 2200 rpm
Minimum Power 81.8HP
Emissions UN ECE R96 Stage IIIA
Engine Configuration Inline 4, 4-Stroke-Cycle Diesel
Bore 4.1in
Stroke 5in
Displacement 268.5in³
Compression Ratio 18.2:1
Aspiration Turbocharged (T)
Rotation from Flywheel End Counterclockwise
Aftertreatment -
Length 49.6in
Width 28.9in
Height 38in
Weight 1025lb

Standard Equipment:

  • Air Inlet System
    • Mounted air filter and turbocharger
  • Control System
    • Available in 12 volt or 24 volt systems
    • Starter motor 12V or 24V
  • Cooling System
    • Fan (pusher or puller)
    • Fan drive
    • Radiator
    • Water pump
  • Flywheels And Flywheel Housing
    • Flywheel
    • SAE No. 3 flywheel housing
  • Fuel System
    • Fuel filter
  • Lube System
    • Oil cooler
    • Lube oil filter
    • Timing case oil filler
  • Mountings
    • Engine mounting brackets
  • Power Take Off (pto)
    • SAE A or SAE B front PTO (142/280 NM)
  • General
    • Paint: Caterpillar yellow, with optional colors available at request

Optional Equipment: