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Power units

C9.3B

The Cat® C9.3B Industrial Diesel Power Unit is offered in ratings ranging from 250-340 kW (335-456 hp) @ 1800-2200 rpm and meet U.S. EPA Tier 4 Final, EU Stage V emission, China Nonroad Stage IV, Japan 2014 (Tier 4 Final) and Korea Stage V standards. Conveniently pre-configured for a wide range of applications, the Cat® Industrial Power Unit is a complete power package containing a radiator, flywheel, alternator and alternator wiring completely pre-assembled for fast, straightforward installation in a number of OEM, customer and packager applications. These fuel efficient units are ready made for irrigation, industrial, mining and other pump applications.

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800.768.4200
Power Rating
Maximum Power 456 hp
Maximum Torque 1540 lb-ft @ 1400 rpm
Rated Speed 1800-2200 rpm
Minimum Power 335 hp
Emission Standards
Emissions EU Stage V, U.S. EPA Tier 4 Final, Korea Stage V, Japan 2014 (Tier 4 Final) and China Nonroad IV
General
Engine Configuration Inline 6, 4-Stroke-Cycle-Diesel
Bore 4.5 in
Stroke 5.9 in
Displacement 567.5 in³
Compression Ratio 17.0:1
Aspiration Turbocharged Aftercooled (TA)
Rotation from Flywheel End Counterclockwise
Aftertreatment DOC+DPF+SCR
Power Unit Dimensions
Length 83 in
Width 43 in
Height 68.5 in
Weight 3563 lb
Aftertreatment Dimensions
Width 34.3 in
Height 22.4 in
Weight 468 lb
Aftertreatment Dimensions*
Diameter 13 in

Air Inlet System

  • Turbocharged
  • Air-to-Air Aftercooled
  • Mid-mount turbocharged system with front and rear exhaust configurations (Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final), China Nonroad Stage IV and Korea Stage V)

Control System

  • Electronic control system
  • Over-foam wiring harness
  • Automatic altitude compensation
  • Power compensated for fuel temperature
  • Configurable software features
  • Engine monitoring system SAE J1939 broadcast and control
  • Integrated Electronic Control Unit (ECU)
  • Remote fan control

Cooling System

  • Vertical or RH thermostat outlet
  • Centrifugal water pump
  • Guidance on cooling system design available through your dealer to ensure equipment reliability

Flywheels and Flywheel Housing

  • Dual rear PTO configuration
  • Available SAE No. 1 power take off with optional SAE B or SAE C power take off drives. Engine power can also be taken from the front of the engine with optional attachments. (Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final) China Nonroad Stage IV and Korea Stage V

Fuel System

  • Electronic high pressure common rail
  • Primary fuel filter
  • Secondary fuel filters
  • Fuel transfer pump
  • Electronic fuel priming

Lube System

  • Open crankcase ventilation system
  • Oil cooler
  • Oil filler
  • Lube oil filter
  • Oil dipstick
  • Gear driven oil pump
  • Choice of front, rear or center sumps
  • Open crankcase ventilation system with fumes disposal (optional OCV filter system) (Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final), China Nonroad IV, Korea Stage V)

Power Take Off (PTO)

  • SAE B or SAE C power take off (PTO) drives. Engine power can also be taken from the front of the engine on some applications.

General

  • Vibration damper
  • Lifting eyes

U.S. EPA Tier 4 Final, EU Stage IV Aftertreatment/ Clean Emissions Control Equipment

  • Clean Emissions Module (CEM), consisting of Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC)
  • Pump Electronic Control Unit (PETU)
  • Available in 12V or 24V systems
  • Selective Catalytic Reduction (SCR)
Need installed dimensions with enclosure and tank? See Model Configurations