Cat® C4.4 Diesel Engine

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The Cat® C4.4 Industrial Diesel Engine is offered in ratings ranging from 61.5-106 bkW (74.5-100 bhp) @ 2200 rpm. These ratings meet 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.

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Maximum Power 142HP
Maximum Torque 411.2lb-ft @ 1400 rpm
Minimum Power 91.2HP
Rated Speed 2200 rpm
Emissions China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA
Height 37.7in
Length 24.8in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 794lb
Width 24.6in
Aftertreatment -
Aspiration Turbocharged (T) or Turbocharged Aftercooled (TA)
Bore 4.1in
Combustion System Direct Injection
Compression Ratio 16.9:1
Displacement 269in³
Engine Configuration Inline 4, 4-Stroke-Cycle Diesel
Rotation from Flywheel End Counterclockwise
Stroke 5in

Standard Equipment:

  • Air Inlet System
    • Inlet manifold with choice of inlets.
  • Control System
    • Alternator
    • Starter motor
    • Glow plug starting aid
  • 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
    • Paint: Caterpillar yellow, with optional colors available at request
    • Timing case and gear-driven auxiliaries
    • Belt-driven auxiliaries
    • Engine mountings
    • Gauges
    • Displays
    • Power and torque curve tailoring

Optional Equipment: