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C6.6

Industrial Diesel Engines

Cat® C6.6 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 C6.6 The Cat® C6.6 Industrial Diesel Engine is offered in ratings ranging from 89-129.4 bkW (119.3-173.5 bhp) @ 2200 rpm. These ratings met U.S. EPA Tier 4 Interim Equivalent, EU Stage IIIB 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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Maximum Power 129.4 kW
Rated Speed 2200 rpm
Minimum Power 89 kW
Emissions U.S. EPA Tier 4 Interim Equivalent
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C6.6
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FEATURES & BENEFITS

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. Read more

High Performance

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

Fuel Efficiency

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

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... Read more

Broad Application Range

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

Package Size

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

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... Read more

Quality

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

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... Read more

SPECIFICATIONS FOR C6.6

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Power Rating
Maximum Power 129.4 kW
Rated Speed 2200 rpm
Minimum Power 89 kW
Emission Standards
Emissions U.S. EPA Tier 4 Interim Equivalent
General
Engine Configuration Inline 6
Bore 105 mm
Stroke 127 mm
Displacement 6.6 l
Compression Ratio 16.5:1
Aspiration Turbocharged Aftercooled (TA)
Combustion System Direct Injection
Rotation from Flywheel End Counterclockwise
Engine Dimensions - Approximate
Length 1064 mm
Width 753 mm
Height 907 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 695 kg
Aftertreatment Dimensions
Length 853 mm
Width 365 mm
Height 352 mm
Weight 40 kg
Aftertreatment Dimensions*
Diameter 283 mm

SELECT MODELS TO COMPARE

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C3.6

Maximum Power 100 kW
Maximum Torque 550 Nm @ 1500 rpm
Rated Speed 2000-2400 rpm
Minimum Power 55 kW
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Industrial Diesel Engines

C13B China NR4

Maximum Power 430 kW
Maximum Torque 2634 Nm @ 1400 rpm
Rated Speed 1800-2100 rpm
Minimum Power 340 kW
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Industrial Diesel Engines

3054C

Maximum Power 97 kW
Maximum Torque 500 Nm @ 1400 rpm
Rated Speed 2200-2400 rpm
Minimum Power 52 kW
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Industrial Diesel Engines

C9.3B

Maximum Power 310 kW
Maximum Torque 1810 Nm @ 1400 rpm
Rated Speed 1800-2200 rpm
Minimum Power 230 kW
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Industrial Diesel Engines

C7.1

Maximum Power 240 kW
Maximum Torque 1268 Nm @ 1400 rpm
Rated Speed 2200 rpm
Minimum Power 129 kW
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Industrial Diesel Engines

C4.4

Maximum Power 129.4 kW
Maximum Torque 750 Nm @ 1400 rpm
Rated Speed 2200 rpm
Minimum Power 70 kW
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Industrial Diesel Engines

C1.7 China NR4

Maximum Power 18.9 kW
Maximum Torque 97.9 Nm @ 1600 rpm
Rated Speed 2200 rpm
Minimum Power 18.9 kW
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Industrial Diesel Engines

3608

Maximum Power 2460 kW
Maximum Torque 24700 Nm @ 820 rpm
Rated Speed 800-1000 rpm
Minimum Power 2080 kW
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