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Cat® C6.6 Diesel Engine

The Cat® C6.6 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 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.

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SPECIFICATION SUMMARY
  • Minimum Power 119.0 bhp
  • Maximum Power 275.0 bhp
  • Emissions U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent
  • Rated Speed 2200-2500 rpm

PRICE (USD)
Call 440-838-7348 for rate information

Power Rating

  • Minimum Power
    119.0 bhp
  • Maximum Power
    275.0 bhp
  • Rated Speed
    2200-2500 rpm
  • Minimum Power
    119 HP
  • Maximum Power
    275 HP
  • Rated Speed
    2200-2500 rpm
  • Maximum Power
    275 HP
  • Rated Speed
    2200-2500 rpm
  • Minimum Power
    119 HP

Emission Standards

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

General

  • Engine Configuration
    Inline 6, 4-Stroke-Cycle Diesel
  • Bore
    105 mm (4.13 in)
  • Stroke
    127 mm (5.0 in)
  • Displacement
    6.6 L (402.8 in³)
  • Aspiration
    Turbocharged Aftercooled (TA)
  • Compression Ratio
    16.2:1
  • Combustion System
    Direct Injection
  • Rotation (from flywheel end)
    Counterclockwise
  • Engine Configuration
    Inline 6, 4-Stroke-Cycle Diesel
  • Bore
    105 mm (4.13 in)
  • Stroke
    127 mm (5.0 in)
  • Aspiration
    Turbocharged Aftercooled (TA)
  • Displacement
    6.6 L (402.8 in³)
  • Compression Ratio
    16.2:1
  • Combustion System
    Direct Injection
  • Rotation from Flywheel End
    Counterclockwise
  • Aftertreatment
    -
  • Engine Configuration
    Inline 6, 4-Stroke-Cycle Diesel
  • Compression Ratio
    16.2:1
  • Aspiration
    Turbocharged Aftercooled (TA)
  • Combustion System
    Direct Injection
  • Rotation from Flywheel End
    Counterclockwise
  • Bore
    4.13 in
  • Stroke
    5 in
  • Displacement
    402.8 in³

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

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

Engine Dimensions - Approximate

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

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.

World-class Product Support Offered Through Global Cat Dealer Network

  • Scheduled maintenance, including SOSSM 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

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

Optional Equipment:

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