Cat® C9 Industrial Diesel Engine

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The Cat® C9 Industrial Diesel Engine is offered in ratings ranging from 205-280 bkW (275-375 bhp) @ 1800-2200 rpm. These ratings meet China Stage III, EPA Tier 3 equivalent, and EU Stage IIIA equivalent emission standards. Industries and applications powered by C9 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, Mobile Sweepers, Paving Equipment, Pumps, Shovels/Draglines, Specialty Ag Equipment, Sprayers, Surface Hauling Equipment, Trenchers and Underground Mining Equipment.

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Maximum Power 375HP
Maximum Torque 1230lb-ft @ 1400 rpm
Minimum Power 275HP
Rated Speed 1800-2200 rpm
Emissions China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA, U.S. EPA Tier 3
Height 40.3in
Length 43in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 1905lb
Width 32.6in
Aftertreatment -
Aspiration Turbocharged Aftercooled (TA)
Bore 4.4in
Combustion System Direct Injection
Compression Ratio 16.1:1
Displacement 537in³
Engine Configuration Inline 6, 4-Stroke-Cycle Diesel
Rotation from Flywheel End Counterclockwise
Stroke 5.9in

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
    • HEUI 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

Optional Equipment: