C4.4

Maximum Power: 111.3 hp / 83 kW
Maximum Torque: 308 lb-ft @ 1400 rpm / 418 Nm @ 1400 rpm
Minimum Power: 72.4 hp / 54 kW

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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Specifications
Equipment

Power Rating
Maximum Power	111.3 hp / 83 kW
Maximum Torque	308 lb-ft @ 1400 rpm / 418 Nm @ 1400 rpm
Rated Speed	2200-2400 rpm
Minimum Power	72.4 hp / 54 kW

Emission Standards
Emissions	UN ECE R96 Stage IIIA

General
Engine Configuration	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
Aspiration	Naturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)
Combustion System	Direct Injection
Rotation from Flywheel End	Counterclockwise
Aftertreatment	-

Engine Dimensions - Approximate
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

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

C4.4

Standard Equipment

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