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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.
| Power Rating | |
| Maximum Power | 111.3 HP |
| Maximum Torque | 308 lb-ft @ 1400 rpm |
| Rated Speed | 2200-2400 rpm |
| Minimum Power | 72.4 HP |
| Emission Standards | |
| Emissions | UN ECE R96 Stage IIIA |
| Engine Dimensions - Approximate | |
| Length | 26.1 in |
| Width | 23.7 in |
| Height | 30.5 in |
| Weight - Net Dry - Basic Operating Engine Without Optional Attachments | 674.6 lb |
| General | |
| Engine Configuration | Inline 4, 4-Stroke-Cycle Diesel |
| Bore | 4.1 in |
| Stroke | 5 in |
| Displacement | 269 in³ |
| 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 | - |
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
