The Cat® C4.4 Industrial Diesel Engine is offered in ratings ranging from 74-129.4 bkW (99-173.5 bhp) @ 2200 rpm, which meet U.S. EPA Tier 4 Final, EU Stage IV emission standards. U.S. EPA Tier 4 Interim equivalent and EU Stage IIIB equivalent ratings are also available using U.S. EPA and EU Flex provisions. 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.
|Emissions||U.S. EPA Tier 4 Final, EU Stage IV U.S. EPA Tier 4 Final, EU Stage IV||More Less|
|Engine Configuration||Inline 4, 4-Stroke-Cycle Diesel Inline 4, 4-Stroke-Cycle Diesel||More Less|
|Bore||105 mm (4.13 in) 105 mm (4.13 in)||More Less|
|Stroke||127 mm (5.00 in) 127 mm (5.00 in)||More Less|
|Displacement||4.4 L (268.5 in³) 4.4 L (268.5 in³)||More Less|
|Aspiration||Turbocharged Aftercooled (TA) or Series Turbocharged Aftercooled (TTA) Turbocharged Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)||More Less|
|Compression Ratio||16.5:1 16.5:1||More Less|
|Combustion System||Direct Injection Direct Injection||More Less|
|Rotation from Flywheel End||Counterclockwise Counterclockwise||More Less|
|Cooling System - Capacity||10.8 L (11.4 qt) 10.8 L (11.4 qt)||More Less|
|Lube System - Refill||5.2-13.5 L (5.5-14.27 qt) 5.2-13.5 L (5.5-14.27 qt)||More Less|
|Width||741.6-772.4 mm (29.1-30.4 in) 741.6-772.4 mm (29.1-30.4 in)||More Less|
|Length||845.1 mm (33.3 in) 845.1 mm (33.3 in)||More Less|
|Weight - Net Dry - Basic Operating Engine Without Optional Attachments||400-420 kg (881.8-926 lb) 400-420 kg (881.8-926 lb)||More Less|
|Height||848.2-867.6 mm (33.4-34.1 in) 848.2-867.6 mm (33.4-34.1 in)||More Less|
|Length||647-828 mm (25.5-32.6 in) 647-828 mm (25.5-32.6 in)||More Less|
|Weight||34-80 kg (75-17;6.4 lb) 34-80 kg (75-17;6.4 lb)||More Less|
|Diameter||224.9-270.3 mm (9.6-10.6 in) 224.9-270.3 mm (9.6-10.6 in)||More Less|
|Height||279-430 mm (11-16.9 in) 279-430 mm (11-16.9 in)||More Less|
|Width||365-695 mm (14.3-27.4 in) 365-695 mm (14.3-27.4 in)||More Less|
World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.
Series turbocharging with smart wastegate available on specific ratings for fast response, high power, and increased torque.
Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.
Tier 4 Interim or Tier 4 Final, Stage IIIB or Stage IV engines require Ultra Low Sulfur Diesel (ULSD) fuel containing a maximum of 15 ppm sulfur, and new oil formulations to support the new technology. Cat® engines are designed to accommodate B20 biofuel. Your Cat dealer can provide more information regarding fuel and oil.
Industry leading range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.
Ideal for equipment with narrow engine compartments. Multiple installation options minimize total package size.
Worldwide service delivers ease of maintenance and simplifies the servicing routine. Hydraulic tappets, multi-vee belts, "no ash service" aftertreatment, and 500-hour oil change intervals enable low-cost maintenance. Many service items have a choice of location on either side of the engine to enable choice of service access. The S·O·SSM program is available from your Cat dealer to determine oil change intervals and provide optimal performance.
Every Cat engine is manufactured to stringent quality standards in order to assure customer satisfaction.
Regeneration. Passive regeneration completely transparent to the operator.
Regeneration. The DOC/SCR modular design offers a simple, compact package while providing high levels of performance. A DOC/DPF/SCR option is available for higher power machines. While in use, both DOC/SCR an DOC/DPF/SCR systems offer transparent operation to the user.