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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.

Cat® C4.4 Diesel Engine - Specifications

Power Rating
Maximum Power
111.3 HP
83 kW
Maximum Torque
308 lb-ft @ 1400 rpm
418 Nm @ 1400 rpm
Rated Speed
2200-2400 rpm
Minimum Power
72.4 HP
54 kW
Emission Standards
Emissions
UN ECE R96 Stage IIIA
Engine Dimensions - Approximate
Length
26.1 in
663 mm
Width
23.7 in
602 mm
Height
30.5 in
775 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments
674.6 lb
306 kg
General
Engine Configuration
Inline 4, 4-Stroke-Cycle Diesel
Bore
4.1 in
105 mm
Stroke
5 in
127 mm
Displacement
269 in³
4.4 l
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
-