Industrial Diesel Engines C4.4

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Key Specs

Maximum Power
111.3 HP
83 kW
Maximum Torque
308 lb-ft @ 1400 rpm
418 Nm @ 1400 rpm
Emissions
UN ECE R96 Stage IIIA
UN ECE R96 Stage IIIA

Overview

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.

Product Specifications for C4.4

Maximum Power 111.3 HP 83 kW
Maximum Torque 308 lb-ft @ 1400 rpm 418 Nm @ 1400 rpm
Rated Speed 2200-2400 rpm 2200-2400 rpm
Minimum Power 72.4 HP 54 kW
Emissions UN ECE R96 Stage IIIA UN ECE R96 Stage IIIA
Engine Configuration Inline 4, 4-Stroke-Cycle Diesel Inline 4, 4-Stroke-Cycle Diesel
Bore 4.1 in 105 mm
Stroke 5 in 127 mm
Displacement 269 in³ 4.4 l
Compression Ratio 18.2:1 18.2:1
Aspiration Naturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA) Naturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)
Combustion System Direct Injection Direct Injection
Rotation from Flywheel End Counterclockwise Counterclockwise
Aftertreatment - -
Length 26.1 in 663 mm
Width 23.7 in 602 mm
Height 30.5 in 775 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 674.6 lb 306 kg

C4.4 Standard Equipment

Air Inlet System

  • Inlet manifold with choice of inlets.

Control System

  • Alternator
  • Starter motor
  • Control Panel
  • Glow plug starting aid

Cooling System

  • Top tank temperature 108° C (226° F) as standard to minimize cooling pack size
  • 50:50 water glycol mix

Flywheels and Flywheel Housing

  • SAE No. 3 flywheel housing
  • Flywheel and starter rings

Fuel System

  • Fuel filter positions

Lube System

  • Lubricating oil filters and breathers
  • Oil filter positions
  • Lube oil sump

Power Take Off

  • SAE B Power Take Off (PTO)

General

  • 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

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