C6.6 ACERT™

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Overview

The Cat® C6.6 ACERT Industrial Diesel Engine is offered in ratings ranging from 89-129.4 bkW (119.3-173.5 bhp) @ 2200 rpm. These ratings meet U.S. EPA Tier 4 Interim, EU Stage IIIB emission standards. Industries and applications powered by C6.6 ACERT engines include: Agriculture, Ag Tractors, Aircraft Ground Support, Bore/Drill Rigs, Chippers/Grinders, Combines/Harvesters, 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 and Underground Mining Equipment.

Power Rating

Units:
Minimum Power 119.3 bhp 89.0 bkW Less
Maximum Power 173.5 bhp 129.4 bkW Less
Rated Speed 2200 rpm 2200 rpm Less

Emission Standards

Emissions U.S. EPA Tier 4 Interim, EU Stage IIIB U.S. EPA Tier 4 Interim, EU Stage IIIB Less

General

Engine Configuration Inline 6, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel Less
Bore 105.0 mm (4.13 in) 105.0 mm (4.13 in) Less
Stroke 127 mm (5.00 in) 127 mm (5.00 in) Less
Displacement 6.6 L (402.8 in³) 6.6 L (402.8 in³) Less
Aspiration Turbocharged Aftercooled (TA) Turbocharged Aftercooled (TA) Less
Compression Ratio 16.5:1 16.5:1 Less
Combustion System Direct Injection Direct Injection Less
Rotation (from flywheel end) Counterclockwise Counterclockwise Less
Cooling System Capacity 13.7 L (14.5 qt) 13.7 L (14.5 qt) Less
Lube System (refill) 13-16 L (13.7-16.9 qt) 13-16 L (13.7-16.9 qt) Less

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

Length 1063.7 mm (41.9 in) 1063.7 mm (41.9 in) Less
Width 753 mm (29.6 in) 753 mm (29.6 in) Less
Height 907 mm (35.7 in) 907 mm (35.7 in) Less
Weight - Net Dry (Basic Operating Engine Without Optional Attachments) 695 kg (1532 lb) 695 kg (1532 lb) Less

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

Length 852.7 mm (33.6 in) 852.7 mm (33.6 in) Less
Width 364.6 mm (14.35 in) 364.6 mm (14.35 in) Less
Height 352 mm (13.9 in) 352 mm (13.9 in) Less
Weight 40 kg (88.1 lb) 40 kg (88.1 lb) Less
Diameter 283 mm (11.1 in) 283 mm (11.1 in) Less

Emissions

Meets U.S. EPA Tier 4 Interim, EU Stage IIIB emission standards.

Reliable, Quiet and Durable Power

World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.

High Performance

Turbocharger with smart wastegate available on some ratings for fast response, high power, and increased torque.

Fuel Efficiency

Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.

Fuel & Oil

Tier 4 Interim or Tier 4 Final, Stage IIIB or Stage IV engines require Ultra Low Sulfur Diesel (ULSD) fuel containing a maximum of 15 ppm sulfur, and new oil formulations to support the new technology. Cat® engines are designed to accommodate B20 biofuel. Your Cat dealer can provide more information regarding fuel and oil.

Broad Application Range

Industry leading range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.

Package Size

Ideal for equipment with narrow engine compartments. Multiple installation options minimize total package size.

Low Cost Maintenance

Worldwide service delivers ease of maintenance and simplifies the servicing routine. Hydraulic tappets, multi-vee belts, "no ash service" aftertreatment, and 500-hour oil change intervals enable low-cost maintenance. Many service items have a choice of location on either side of the engine to enable choice of service access. The S·O·SSM program is available from your Cat dealer to determine oil change intervals and provide optimal performance.

Quality

Every Cat engine is manufactured to stringent quality standards in order to assure customer satisfaction.

World-class Product Support Offered Through Global Cat Dealer Network

  • Scheduled maintenance, including S•O•SSM sample
  • Customer Support Agreements (CSA)
  • Caterpillar Extended Service Coverage (ESC)
  • Superior dealer service network
  • Extended dealer service network through the Cat Industrial Service Distributor (ISD) program

Tier 4 Interim, Stage IIIB Aftertreatment Features


Regeneration. Passive regeneration completely transparent to the operator.


Mounting. Extensive range of inlets and outlets, as well as remote off- and on-engine installations, provide flexibility for many installations.
Service. Service-free DPF for the emissions life of the engine.

C6.6 ACERT™ Standard Equipment

Air Inlet System
  • Standard air cleaners

Control System
  • Full electronic control system, all connectors and wiring looms waterproof and designed to withstand harsh off-highway environments
  • Flexible and configurable software features and well-supported SAE J1939 CAN bus enables highly integrated machines

Cooling System
  • Top tank temperature 108° C (226° F) as standard to minimize cooling pack size
  • 50:50 water glycol mix

Flywheels and Flywheel Housing
  • Wide choice of drivetrain interfaces, including SAE No. 1, SAE No. 2, and SAE No. 3 configurations

Fuel System
  • Electronic high pressure common rail
  • ACERT™ Technology
  • Innovative filter design to ensure maximum protection of the engine

Lube System
  • Wide choice of sumps for different applications

Power Take Off (PTO)
  • SAE A and SAE B flanges on left-hand side. Additional SAE A flange available on left-hand side. Engine power can also be taken from the front of the engine on some applications. Factory fitted compressors are also available.

U.S. EPA Tier 4 Interim, EU Stage IIIB Aftertreatment / Clean Emissions Control Equipment
  • Clean Emissions Module (CEM), consisting of Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC)
  • 3" flex pipe connection kit with straight, 45°, and 90° options for flexibility

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Contact your local dealer
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