New | Cat® C9.3B Industrial Diesel Engine

The Cat® C9.3B Industrial Diesel Engine is offered in ratings ranging from 230-310 bkW (308-416 bhp) @ 1800-2200 rpm. These ratings meet China Nonroad Stage III, Brazil MAR-1, and UN R96 Stage IIIA emission standards.
The C9.3B engines are ideal choices to power applications in agriculture, aircraft ground support, construction, forestry, general industrial, materialhandling, and mining.

Power Rating
Maximum Power416 HP
Maximum Torque1335 lb-ft @ 1400 rpm
Rated Speed1800-2200 rpm
Minimum Power308 HP
Emission Standards
EmissionsChina Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA
Engine ConfigurationInline 6, 4-Stroke-Cycle Diesel
Bore4.5 in
Stroke5.9 in
Displacement567.5 in³
Compression Ratio16.5:1
AspirationTurbocharged Aftercooled (TA)
Combustion SystemDirect Injection
Rotation from Flywheel EndCounterclockwise
Engine Dimensions - Approximate
Length44.3 in
Width31.1 in
Height42 in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments1907 lb

The C9.3b Delivers Expanded Capability With 19% More Power And 16% More Torque Than The previous 8.8 Liter Platform For Less Regulated Countries (comparison For Ind-C Rating).

The C9.3b Engine Leverages A Core Engine With Over 200 Million Off-Highway Hours In The Field And is Manufactured In A World-Class Facility; Assuring Reliability, Quiet Operation And Many Hours Of productive Life.

  • the C9.3b For Lrc Offers Platform Commonality With The C9.3b For Highly  Regulated Countries To reduce Cost Of Installation And Support A Global Customer Base By Sharing A Common Core Engine, offering Similar Machine Interfaces And Controls Architecture.
  • high Power Density, Up To 33.3 Kw/L (44.7 Hp/L) Gives Original Equipment Manufacturers (oems)
        the Ability To Downsize Their Engine Installation Without Sacrificing Performance.
  • fully Configurable Engine Options And Industrial Power Unit (ipu)  Available From Factory To Avoid 
        significant Design, Validation, And Manufacturing Costs.

  • worldwide Service Delivers Ease Of Maintenance And Simplifies The Servicing Routine.
  • standard Service Intervals Of 500 Hours Under Normal Operating Conditions.
  • the S•o•ssm Program Is Available From Your Cat Dealer To Optimize Oil Change Intervals.
  • ideal For High-Hour Applications Over 10,000 Hours.     
    • remote Mount Options For Serviceable Items Such As Oil And Fuel Filters.

C9.3b Development And Calibration Strategies  Have Yielded Significant Improvements In Fuel 
Consumption, Minimizing The Total Cost Of Ownership.

  • 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

Standard Equipment

Air Inlet System
  • Turbocharged: system with front and rear exhaust configurations
  • Air-to-Air Aftercooled
Control System
  • Configurable software features
  • Engine monitoring system SAE J1939 broadcast and control
  • Electronic control system with single on-engine ECM
  • Over-foam wiring harness
  • Automatic altitude compensation
Cooling System
  • Centrifugal water pump
  • Guidance on cooling system design available through your dealer to ensure equipment reliability
Flywheels and Flywheel Housing
  • Available SAE No. 1 and No. 2 flywheel/housings
Fuel System
  • Electronic high pressure common rail
  • Primary fuel filter
  • Secondary and tertiary fuel filters
  • Fuel transfer pump
  • Electronic fuel priming
Lube System
  • Open crankcase ventilation system (OCV) with fumes disposal (optional OCV filter system)
  • Oil cooler
  • Oil filler
  • Lube oil filter
  • Choice of front, rear or center sumps
  • Oil dipstick
  • Gear driven oil pump
  • Vibration damper
  • Lifting eyes
  • Paint: Caterpillar yellow, with optional colors available at request



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