Industrial Diesel Engines C11

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Key Specs

Maximum Power
450 HP
336 kW
Maximum Torque
1517 lb-ft @ 1400 rpm
2056 Nm @ 1400 rpm
Emissions
China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent
China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent

Overview

Providing reliable power for applications requiring 242-336 bkW (325-450 bhp), Cat® C11 Industrial Diesel Engines are proven performers, providing greater options for customers who require powerful flexibility for their equipment. More importantly, they're backed by the world-class Cat dealer network ready to service and support every Cat industrial engine. Industries and applications powered by C11 engines include Agriculture, Ag Tractors, Aircraft Ground Support, Bore/Drill Rigs, Chippers/Grinders, Combines/Harvesters, Compactors/Rollers, Compressors, Construction, Cranes, Crushers, Dredgers, Forestry, Forklifts, General Industrial, Hydraulic Power Units, Irrigation Equipment, Loaders/Forwarders, Material Handling, Mining, Mobile Earthmoving Equipment, Paving Equipment, Pumps, Shovels/Draglines, Specialty Ag Equipment, Sprayers, Surface Hauling Equipment, Trenchers and Underground Mining Equipment. C11 engines, with ratings: 242-336 bkW (325-450 bhp) @ 1800-2100 rpm, meet China Stage II, EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. They are available using U.S. EPA and EU Flexibility, and for other regulated and non-regulated areas.

Product Specifications for C11

Maximum Power 450 HP 336 kW
Maximum Torque 1517 lb-ft @ 1400 rpm 2056 Nm @ 1400 rpm
Rated Speed 1800-2100 rpm 1800-2100 rpm
Minimum Power 325 HP 242 kW
Emissions China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent
Engine Configuration Inline 6, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel
Bore 5.1 in 130 mm
Stroke 5.5 in 140 mm
Displacement 677.4 in³ 11.1 l
Compression Ratio 17.2:1 17.2:1
Aspiration Turbocharged Aftercooled (TA) Turbocharged Aftercooled (TA)
Combustion System Direct Injection Direct Injection
Rotation from Flywheel End Counterclockwise Counterclockwise
Aftertreatment - -
Length 47.4 in 1203 mm
Width 41.5 in 1054 mm
Height 46.7 in 1186 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 2050 lb 930 kg

C11 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

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