C11

Cat® C11 Industrial Diesel Engine

The Cat® C11 Industrial Diesel Engine is offered in ratings ranging from 242-336 kW (325-451 hp). These ratings meet China Nonroad Stage III, Brazil MAR-1, and UN R96 Stage IIIA emission standards and UN R120 performance standards for measurement of net power and specific fuel consumption. Furthermore, this U.S. EPA Tier 3 certified engine can still be ordered as an engine replacement for machines currently taking U.S. EPA Tier 3 engines.

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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

Exceptional power density enables standardization across numerous applications. Multiple installation options minimize total package size. Ideal for equipment with narrow engine compartments.

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

Documents & Brochures

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
  • SAE No. 1 flywheel housing
Fuel System
  • MEUI injection
  • 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

Additional information

Offering Type

Power Rating - Maximum Power

336 kW ( 451 HP )
Power Rating - Maximum Torque

2056 Nm @ 1400 rpm ( 1516 lb-ft @ 1400 rpm )
Power Rating - Rated Speed

1800-2100 rpm
Power Rating - Minimum Power

242 kW ( 325 HP )
Emission Standards - Emissions

China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA, U.S. EPA Tier 3
General - Engine Configuration

Inline 6, 4-Stroke-Cycle Diesel
General - Bore

130 mm ( 5.1 in )
General - Stroke

140 mm ( 5.5 in )
General - Displacement

11.1 l ( 677.4 in³ )
General - Compression Ratio

17.2:1
General - Aspiration

Turbocharged Aftercooled (TA)
General - Combustion System

Direct Injection
General - Rotation from Flywheel End

Counterclockwise
General - Aftertreatment

–
Engine Dimensions - Approximate - Length

1203 mm ( 47 in )
Engine Dimensions - Approximate - Width

1054 mm ( 42 in )
Engine Dimensions - Approximate - Height

1186 mm ( 47 in )
Engine Dimensions - Approximate - Weight - Net Dry - Basic Operating Engine Without Optional Attachments

930 kg ( 2050 lb )

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