Cat® C4.4 ACERT Industrial Diesel Engines offer the perfect balance of durability, fuel efficiency and low emissions. Extensively tested on the job, these engines use a range of common rail fuel systems and advanced control systems to deliver maximum uptime in the harshest environment. They have proven they can handle the toughest applications and deliver superior performance that exceeds the expectations of the most demanding users. Industries and applications powered by C4.4 ACERT 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 65.9 bkW
Maximum Power 129.4 bkW
Rated Speed 2200 rpm
Emissions U.S. EPA Tier 4 Final, EU Stage IV
Engine Configuration Inline 4, 4-Stroke-Cycle Diesel
Bore 105 mm (4.13 in)
Stroke 127 mm (5.00 in)
Displacement 4.4 L (268.5 in³)
Aspiration Turbocharged Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)
Compression Ratio 16.5:1
Combustion System Direct Injection
Rotation from Flywheel End Counterclockwise
Cooling System – Capacity 10.8 L (11.4 qt)
Lube System – Refill 5.2-13.5 L (5.5-14.27 qt)
Height 848.2-867.6 mm (33.4-34.1 in)
Length 845.1 mm (33.3 in)
Weight – Net Dry – Basic Operating Engine Without Optional Attachments 400-420 kg (881.8-926 lb)
Width 741.6-772.4 mm (29.1-30.4 in)
Diameter 224.9-270.3 mm (9.6-10.6 in)
Height 279-430 mm (11-16.9 in)
Length 647-828 mm (25.5-32.6 in)
Weight 34-80 kg (75-17;6.4 lb)
Width 365-695 mm (14.3-27.4 in)


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