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