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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Maximum Power111.3HP

Maximum Torque308lb-ft @ 1400 rpm

Rated Speed2200-2400 rpm

Minimum Power72.4HP

EmissionsUN ECE R96 Stage IIIA

Length26.1in

Width23.7in

Height30.5in

Weight - Net Dry - Basic Operating Engine Without Optional Attachments674.6lb

Engine ConfigurationInline 4, 4-Stroke-Cycle Diesel

Bore4.1in

Stroke5in

Displacement269in³

Compression Ratio18.2:1

AspirationNaturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)

Combustion SystemDirect Injection

Rotation from Flywheel EndCounterclockwise

Aftertreatment-

Standard

Inlet manifold with choice of inlets.

Standard

Alternator

Starter motor

Control Panel

Glow plug starting aid

Standard

Top tank temperature 108° C (226° F) as standard to minimize cooling pack size

50:50 water glycol mix

Standard

SAE No. 3 flywheel housing

Flywheel and starter rings

Standard

Fuel filter positions

Standard

Lubricating oil filters and breathers

Oil filter positions

Lube oil sump

Standard

SAE B Power Take Off (PTO)

Standard

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

Cat® C4.4 Diesel Engine