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Cat® C4.4 ACERT™ Diesel Engine
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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.

Specifications
Standard Equipment

General

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)

Power Rating

Minimum Power
88.4 bhp
Maximum Power
173.5 bhp
Frequency
2200 rpm

Emission Standards

Emissions
U.S. EPA Tier 4 Final, EU Stage IV

Aftertreatment Dimensions (Approximate. Final dimensions dependent on selected options)

Length
647-828 mm (25.5-32.6 in)
Width
365-695 mm (14.3-27.4 in)
Height
279-430 mm (11-16.9 in)
Weight
34-80 kg (75-17;6.4 lb)
Diameter
224.9-270.3 mm (9.6-10.6 in)

Engine Dimensions (Approximate. Final dimensions dependent on selected options)

Length
845.1 mm (33.3 in)
Width
741.6-772.4 mm (29.1-30.4 in)
Height
848.2-867.6 mm (33.4-34.1 in)
Weight - Net Dry (Basic Operating Engine Without Optional Attachments)
400-420 kg (881.8-926 lb)
  • Air Inlet System
  • Control System
  • Cooling System
  • Flywheels and Flywheel Housing
  • Fuel System
  • Lube System
  • Power Take Off
  • General
  • U.S. EPA Tier 4 Interim Equivalent, EU Stage IIIB Equivalent Aftertreatment / Clean Emissions Control Equipment
  • U.S. EPA Tier 4 Final, EU Stage IV Aftertreatment/ Clean Emissions Control Equipment