Industrial engines

C9.3B

The Cat?� C9.3B industrial diesel engine is offered in ratings rangingfrom 280-330 kW (375-443 hp). These ratings have been fuel optimized
for use in countries without any regulatory requirements for emissionstandards.

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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
General
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
Aftertreatment-
Engine Dimensions - Approximate
Length44 in
Width31 in
Height42 in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments1907 lb

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

General

  • Vibration damper
  • Lifting eyes
  • Paint: Caterpillar yellow, with optional colors available at request
  • Cat® C9.3B LRC Diesel Engine Industrial
    application/pdf
    Download ↓

Need installed dimensions with enclosure and tank? See Model Configurations