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Cat® C4.4 Diesel Engine

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