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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. C4.4 ACERT engines, with ratings: 61.5-106 bkW (82.5-142 bhp) @ 2200 rpm, meet EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. They are available using U.S. EPA and EU Flexibility, and for other regulated and non-regulated areas.

Power Rating
Minimum Power61.5 bkW
Maximum Power106.0 bkW
Rated Speed2200 rpm
Emission Standards
EmissionsU.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent
Engine ConfigurationInline 4, 4-Stroke-Cycle Diesel
Bore105 mm (4.13 in)
Stroke127 mm (5.0 in)
Displacement4.4 L (269 in³)
AspirationTurbocharged (T) or Turbocharged Aftercooled (TA)
Compression Ratio16.2:1
Combustion SystemDirect Injection
Rotation (from flywheel end)Counterclockwise
Lube System (refill)11 L (11.6 qt)
Engine Dimensions (Approximate. Final dimensions dependent on selected options)
Length631 mm (24.8 in)
Width626 mm (24.65 in)
Height823.5 mm (32.4 in)
Weight, Net Dry (Basic Operating Engine Without Optional Attachments)360 kg (793.7 lb)