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.
SPECIFICATIONS
Minimum Power54.0 bkW
Maximum Power83.0 bkW
Rated Speed2200-2400 rpm
power rating
Minimum Power54.0 bkW
Maximum Power83.0 bkW
Rated Speed2200-2400 rpm
emission standards
EmissionsEU Stage IIIA Equivalent (NA). U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent (T, TA)
general
Engine ConfigurationInline 4, 4-Stroke-Cycle Diesel
Bore105 mm (4.13 in)
Stroke127 mm (5.0 in)
Displacement4.4 L (269 in³)
AspirationNaturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)
Compression Ratio16.2:1
Combustion SystemDirect Injection
Rotation (from flywheel end)Counterclockwise
Lube System (refill)11 L (11.6 qt)
engine dimensions approximate final dimensions dependent on selected options
Length663 mm (26.1 in)
Width470-620 mm (18.5-24.4 in)
Height775-810 mm (30.5-31.9 in)
Weight, Net Dry (Basic Operating Engine Without Optional Attachments) 291-306 kg (640-674.6 lb)
C4.4 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