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Cat® industrial engines are ready for your application. These engines deliver the unsurpassed reliability, durability, fuel efficiency, and low cost of ownership you have come to expect from Caterpillar. And our world-class product support will never let you down. All this adds up to a powerful advantage for you. Every Cat industrial diesel and gas engine comes with 75 years of engine experience. Our world-class product line of high-speed and medium-speed industrial engines in a wide range of applications offer power solutions for the most demanding installations and the harshest environments. With power options from 8.2 to 6,100 bkW (11 to 8,180 bhp), Cat industrial diesel and gas engines offer the widest power range in the industry.

Cat® C9 Industrial Diesel Engine

The Cat® C9 ACERT™ Industrial Diesel Engine is offered in ratings ranging from 205-280 bkW (275-375 bhp) @ 1800-2200 rpm. These ratings meet China Stage II, EPA Tier 3 equivalent, and EU Stage IIIA equivalent emission standards. Industries and applications powered by C9 ACERT 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.

  • Specification Summary

  • Maximum Power 280 kW
  • Maximum Torque 1668 Nm @ 1400 rpm
  • Rated Speed 1800-2200 rpm
  • Minimum Power 205 kW

Product Details

Power Rating

Maximum Power 280 kW
Maximum Torque 1668 Nm @ 1400 rpm
Rated Speed 1800-2200 rpm
Minimum Power 205 kW

Emission Standards

Emissions China Nonroad III, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent


Engine Configuration Inline 6, 4-Stroke-Cycle Diesel
Bore 112 mm
Stroke 149 mm
Displacement 8.8 l
Compression Ratio 16.1:1
Aspiration Turbocharged Aftercooled (TA)
Combustion System Direct Injection
Rotation from Flywheel End Counterclockwise
Aftertreatment -

Engine Dimensions - Approximate

Length 1091 mm
Width 827 mm
Height 1023 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 864 kg
  • Air Inlet System
    •  Turbocharged
    •  Air-to-Air Aftercooled
  • 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
      • 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
                • 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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