CAT® C6.6 ACERT™ DIESEL ENGINE
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
Minimum Power89.0 bkW
Maximum Power205.0 bkW
Rated Speed2200-2500 rpm


emission standards
EmissionsU.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent
general
Engine ConfigurationInline 6, 4-Stroke-Cycle Diesel
Bore105 mm (4.13 in)
Stroke127 mm (5.0 in)
Displacement6.6 L (402.8 in³)
AspirationTurbocharged Aftercooled (TA)
Compression Ratio16.2:1
Combustion SystemDirect Injection
Rotation (from flywheel end)Counterclockwise
engine dimensions approximate final dimensions dependent on selected options
Length929 mm (36.6 in)
Width668 mm (26.3 in)
Height797 mm (31.4 in)
Weight, Net Dry (Basic Operating Engine Without Optional Attachments) 506 kg (1116 lb)
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: Caterpillar yellow, with optional colors available at request