C4.4

Cat® C4.4 Diesel Engine

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C4.4 LRC Diesel Engines - Lesser Regulated & Non-Regulated
Maximum Power
111.3 hp
Maximum Torque
308 lb-ft @ 1400 rpm
Rated Speed
2200-2400 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.
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THE RUNDOWN

Reliable, Quiet and Durable Power
World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.
Package Size
Ideal for equipment with narrow engine compartments. Multiple installation options minimize total package size.
World-class Product Support Offered Through Global Cat Dealer Network
  • 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
Power Rating
Maximum Power111.3hp
Maximum Torque308lb-ft @ 1400 rpm
Rated Speed2200-2400 rpm
Minimum Power72.4hp
Emission Standards
EmissionsUN ECE R96 Stage IIIA
General
Engine ConfigurationInline 4, 4-Stroke-Cycle Diesel
Bore4.1in
Stroke5in
Displacement269in³
Compression Ratio18.2:1
AspirationNaturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)
Combustion SystemDirect Injection
Rotation from Flywheel EndCounterclockwise
Aftertreatment-
Engine Dimensions - Approximate
Length26.1in
Width23.7in
Height30.5in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments674.6lb
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