Cat® C4.4 Industrial Power Unit

Cat® C4.4 Industrial Power Unit

The Cat® C4.4 Industrial Power Unit is offered in ratings ranging from 96.5 bkW (129.4 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.

  • Maximum Power 129.4 HP

  • Emissions China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA

  • Rated Speed 2200 rpm

  • Minimum Power 129.4 HP

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Product Specifications


Power Rating

  • Maximum Power 129.4HP

  • Minimum Power 129.4HP

  • Rated Speed 2200 rpm

Emission Standards

  • Emissions China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA


  • Aftertreatment -

  • Aspiration Turbocharged Aftercooled (TA)

  • Bore 4.1in

  • Compression Ratio 16.2:1

  • Displacement 268.5in³

  • Engine Configuration Inline 4, 4-Stroke-Cycle Diesel

  • Rotation from Flywheel End Counterclockwise

  • Stroke 5in

Power Unit Dimensions

  • Height 37.9in

  • Length 53.5in

  • Weight 1146lb

  • Width 29.5in



Standard Equipment

  • Mounted air filter and turbocharger

  • Available in 12 volt or 24 volt systems

  • Starter motor 12V or 24V

  • Fan (pusher or puller)

  • Fan drive

  • Radiator

  • Water pump

  • Flywheel

  • SAE No. 3 flywheel housing

  • Fuel filter

  • ACERT Technology

  • Oil cooler

  • Lube oil filter

  • Timing case oil filler

  • Engine mounting brackets

  • SAE A or SAE B front PTO (142/280 NM)

  • Paint: Caterpillar yellow, with optional colors available at request

Optional Equipment