C4.4

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SPECS SUMMARY

Maximum Power111.3 HP (83 kW)
Maximum Torque308 lb-ft @ 1400 rpm (418 Nm @ 1400 rpm)
EmissionsUN ECE R96 Stage IIIA
Rated Speed2200-2400 rpm
The Cat® C4.4 Naturally Aspirated (NA) Industrial Diesel Engine is offered in ratings ranging from 54-56 bkW (72.4-75 bhp) @ 2200 rpm. These ratings meet EU Stage IIIA equivalent emission standards. Turbocharged (T) and Turbocharged Aftercooled (TA) Ratings are also available, ranging from 55.5-83 bkW (74.4-111.3 bhp) @ 2200-2400 rpm. These ratings meet U.S. EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. Industries and applications powered by C4.4 engines include: Agriculture, Aerial Lifts, Aircraft Ground Support, Bore/Drill Rigs, Chippers/Grinders, Compactors/Rollers, Compressors, Construction, Cranes, Crushers, Feller Bunchers, Forestry, Forklifts, General Industrial, Harvesters, Hydraulic Power Units, Irrigation Equipment, Loaders/Forwarders, Material Handling, Mining, Mobile Earthmoving Equipment, Mobile Sweepers, Paving Equipment, Pumps, Skidders, Specialty Ag Equipment, Sprayers, Trenchers, Turf and Landscaping and Underground Mining Equipment.

Specifications

Maximum Power111.3 HP (83 kW)
Maximum Torque308 lb-ft @ 1400 rpm (418 Nm @ 1400 rpm)
EmissionsUN ECE R96 Stage IIIA
Rated Speed2200-2400 rpm
Length26.1 in (663 mm)
Minimum Power72.4 HP (54 kW)
Engine ConfigurationInline 4, 4-Stroke-Cycle Diesel
Bore4.1 in (105 mm)
Stroke5 in (127 mm)
Displacement269 in³ (4.4 l)
Compression Ratio18.2:1
AspirationNaturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)
Combustion SystemDirect Injection
Rotation from Flywheel EndCounterclockwise
Aftertreatment-
Width23.7 in (602 mm)
Height30.5 in (775 mm)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments674.6 lb (306 kg)

Benefits and Features

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

Ideal for equipment with narrow engine compartments. Multiple installation options minimize total package size.

  • Scheduled maintenance, including SOSSM sample
  • Customer Support Agreements (CSA)
  • Caterpillar Extended Service Coverage (ESC)
  • Superior dealer service network
  • Extended dealer service network through the Cat Industrial Service Distributor (ISD) program

Standard Equipment

  • Inlet manifold with choice of inlets.
  • Alternator
  • Starter motor
  • Control Panel
  • Glow plug starting aid
  • Top tank temperature 108° C (226° F) as standard to minimize cooling pack size
  • 50:50 water glycol mix
  • SAE No. 3 flywheel housing
  • Flywheel and starter rings
  • Fuel filter positions
  • Lubricating oil filters and breathers
  • Oil filter positions
  • Lube oil sump
  • SAE B Power Take Off (PTO)
  • Timing case and gear-driven auxiliaries
  • Belt-driven auxiliaries
  • Engine mountings
  • Gauges
  • Displays
  • Power and torque curve tailoring
  • Paint: Caterpillar yellow, with optional colors available at request