Cat® C4.4 Diesel Engine
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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Power Rating
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- Maximum Power
- 111.3HP
- Maximum Torque
- 308lb-ft @ 1400 rpm
- Rated Speed
- 2200-2400 rpm
- Minimum Power
- 72.4HP
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Emission Standards
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- Emissions
- UN ECE R96 Stage IIIA
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Engine Dimensions - Approximate
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- Length
- 26.1in
- Width
- 23.7in
- Height
- 30.5in
- Weight - Net Dry - Basic Operating Engine Without Optional Attachments
- 674.6lb
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General
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- Engine Configuration
- Inline 4, 4-Stroke-Cycle Diesel
- Bore
- 4.1in
- Stroke
- 5in
- Displacement
- 269in³
- Compression Ratio
- 18.2:1
- Aspiration
- Naturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)
- Combustion System
- Direct Injection
- Rotation from Flywheel End
- Counterclockwise
- Aftertreatment
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Standard Equipment:
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Air Inlet System
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- Inlet manifold with choice of inlets.
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Control System
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- Alternator
- Starter motor
- Control Panel
- Glow plug starting aid
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Cooling System
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- Top tank temperature 108° C (226° F) as standard to minimize cooling pack size
- 50:50 water glycol mix
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Flywheels And Flywheel Housing
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- SAE No. 3 flywheel housing
- Flywheel and starter rings
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Fuel System
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- Fuel filter positions
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Lube System
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- Lubricating oil filters and breathers
- Oil filter positions
- Lube oil sump
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Power Take Off
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- SAE B Power Take Off (PTO)
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General
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- 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
