Naturally Aspirated rating meets EU Stage IIIA equivalent emission standards. Turbocharged rating meets EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards.
World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.
Ideal for equipment with narrow engine compartments. Multiple installation options minimize total package size.
Every Cat engine is manufactured to stringent quality standards in order to assure customer satisfaction.
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.
|Minimum Power||54.0 bkW|
|Maximum Power||83.0 bkW|
|Rated Speed||2200-2400 rpm|
|Emissions||EU Stage IIIA Equivalent (NA). U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent (T, TA)|
|Engine Configuration||Inline 4, 4-Stroke-Cycle Diesel|
|Bore||105 mm (4.13 in)|
|Stroke||127 mm (5.0 in)|
|Displacement||4.4 L (269 in³)|
|Aspiration||Naturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)|
|Combustion System||Direct Injection|
|Rotation (from flywheel end)||Counterclockwise|
|Lube System (refill)||11 L (11.6 qt)|
|Length||663 mm (26.1 in)|
|Width||470-620 mm (18.5-24.4 in)|
|Height||775-810 mm (30.5-31.9 in)|
|Weight, Net Dry (Basic Operating Engine Without Optional Attachments)||291-306 kg (640-674.6 lb)|