C6.6 ACERT™

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Overview

The Cat® C6.6 ACERT Industrial Diesel Engine is offered in ratings ranging from 89-205 bkW (119-275 bhp) @ 2200-2500 rpm. These ratings meet U.S. EPA Tier 3 equivalent, EU Stage IIIA equivalent 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 119.0 bhp 89.0 bkW Less
Maximum Power 275.0 bhp 205.0 bkW Less
Rated Speed 2200-2500 rpm 2200-2500 rpm Less

Emission Standards

Emissions U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent Less

General

Engine Configuration Inline 6, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel Less
Bore 105 mm (4.13 in) 105 mm (4.13 in) Less
Stroke 127 mm (5.0 in) 127 mm (5.0 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 16.2:1 16.2:1 Less
Combustion System Direct Injection Direct Injection Less
Rotation (from flywheel end) Counterclockwise Counterclockwise Less

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

Length 929 mm (36.6 in) 929 mm (36.6 in) Less
Width 668 mm (26.3 in) 668 mm (26.3 in) Less
Height 797 mm (31.4 in) 797 mm (31.4 in) Less
Weight, Net Dry (Basic Operating Engine Without Optional Attachments) 506 kg (1116 lb) 506 kg (1116 lb) Less

Emissions

Meets U.S. EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. Available using U.S. EPA Flexibility or EU Flexibility, and for other regulated and non-regulated areas.

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.

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.

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

C6.6 ACERT™ Standard Equipment

Air Inlet System
  • Turbocharged
  • Air-to-Air Aftercooled

Control System
  • Electronic governing, PTO speed control
  • Programmable ratings
  • Automatic altitude compensation
  • Power compensation for fuel temperature
  • Programmable low and high idle and total engine limit
  • Electronic diagnostics and fault logging
  • Engine monitoring system SAE J1939 broadcast and control
  • ADEM™ A4 Electronic Control Unit (ECU)

Cooling System
  • Thermostats and housing, vertical outlet
  • Jacket water pump, centrifugal
  • Water pump, inlet

Exhaust System
  • Exhaust manifold, dry
  • Optional exhaust outlet

Flywheels and Flywheel Housing
  • Choice of SAE No. 2 or SAE No. 3 flywheel housing

Fuel System
  • Electronic high pressure common rail
  • Fuel filter, secondary (2 micron)
  • ACERT™ Technology
  • Fuel transfer pump
  • Fuel priming pump

Lube System
  • Crankcase breather
  • Oil cooler
  • Oil filler
  • Lube oil filter
  • Front sump oil pan
  • Oil dipstick
  • Gear driven oil pump

General
  • Vibration damper
  • Lifting eyes
  • Cold start capability to -20° C (-4° F)
  • Paint: Cat yellow, with optional colors available at request

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