C9.3B LRC Diesel Engines - Lesser Regulated & Non-Regulated


Features At A Glance

High Performance
Reliable, Quiet and Durable Power
Optimized Installation
Low Cost Maintenance
Low Operating Costs
World-class Product Support Offered Through Global Cat Dealer Network

Product Specifications for C9.3B

Power Rating

Emission Standards


Engine Dimensions - Approximate

C9.3B 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

See how C9.3B compares against frequently compared products.

Tools And Expert Help At Every Turn

Product Brochures and More Are Ready to Download!

Full specifications, product brochures and more. Sign up below for additional information. Or for instant access, you can skip this form.

Check out current offers for the C9.3B

View More Offers