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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SPECIFICATION SUMMARY
- Minimum Power 72.4 bhp
- Maximum Power 111.3 bhp
- Emissions EU Stage IIIA Equivalent (NA). U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent (T, TA)
- Rated Speed 2200-2400 rpm
Power Rating
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Minimum Power72.4 bhp
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Maximum Power111.3 bhp
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Rated Speed2200-2400 rpm
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Minimum Power72.4 HP
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Maximum Power111.3 HP
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Rated Speed2200-2400 rpm
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Maximum Torque308 lb-ft @ 1400 rpm
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Maximum Power111.3 HP
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Maximum Torque308 lb-ft @ 1400 rpm
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Rated Speed2200-2400 rpm
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Minimum Power72.4 HP
Emission Standards
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EmissionsEU Stage IIIA Equivalent (NA). U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent (T, TA)
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EmissionsUN ECE R96 Stage IIIA
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EmissionsUN ECE R96 Stage IIIA
General
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Engine ConfigurationInline 4, 4-Stroke-Cycle Diesel
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Bore105 mm (4.13 in)
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Stroke127 mm (5.0 in)
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Displacement4.4 L (269 in³)
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AspirationNaturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)
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Compression Ratio16.2:1
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Combustion SystemDirect Injection
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Rotation (from flywheel end)Counterclockwise
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Lube System (refill)11 L (11.6 qt)
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Engine ConfigurationInline 4, 4-Stroke-Cycle Diesel
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Bore105 mm (4.13 in)
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Stroke127 mm (5.0 in)
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AspirationNaturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)
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Displacement4.4 L (269 in³)
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Compression Ratio18.2:1
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Combustion SystemDirect Injection
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Rotation from Flywheel EndCounterclockwise
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Lube System - Refill11 L (11.6 qt)
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Bore4.1 in
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Stroke5 in
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Displacement269 in³
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Engine ConfigurationInline 4, 4-Stroke-Cycle Diesel
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Bore4.1 in
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Stroke5 in
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Displacement269 in³
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Compression Ratio18.2:1
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AspirationNaturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)
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Combustion SystemDirect Injection
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Rotation from Flywheel EndCounterclockwise
Engine Dimensions (Approximate. Final dimensions dependent on selected options)
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Length663 mm (26.1 in)
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Width470-620 mm (18.5-24.4 in)
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Height775-810 mm (30.5-31.9 in)
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Weight, Net Dry (Basic Operating Engine Without Optional Attachments)291-306 kg (640-674.6 lb)
Engine Dimensions - Approximate
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Height775-810 mm (30.5-31.9 in)
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Length663 mm (26.1 in)
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Weight - Net Dry - Basic Operating Engine Without Optional Attachments291-306 kg (640-674.6 lb)
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Width470-620 mm (18.5-24.4 in)
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Height30.5 in
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Width23.7 in
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Length26.1 in
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Weight - Net Dry - Basic Operating Engine Without Optional Attachments674.6 lb
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Weight - Net Dry - Basic Operating Engine Without Optional Attachments674.6 lb
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Length26.1 in
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Width23.7 in
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Height30.5 in
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
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