Power units

C18 (<560 kW)

The Cat® C18 Industrial Power Unit is offered in ratings ranging from 429-470 kW (575-630 hp) @ 1800-2100 rpm. These ratings meet China Stage II, U.S. EPA Tier 3 equivalent and EU Stage IIIA equivalent or Non-certified emission 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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Power Rating
Maximum Power630 hp
Rated Speed1800-2100
Minimum Power575 hp
Emission Standards
EmissionsChina Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent or Non-Certified
General
Engine ConfigurationInline 6, 4-Stroke-Cycle Diesel
Bore5.7 in
Stroke7.2 in
Displacement1104.5 in³
Compression Ratio16.3:1
AspirationTurbocharged Aftercooled (TA)
Rotation from Flywheel EndCounterclockwise
Aftertreatment-
Power Unit Dimensions
Length54.6 in
Width36.3 in
Height48.9 in
Weight4844 lb

Air Inlet System

  • Turbocharged Aftercooled (429-470 bkW, 575-630 bhp)
  • Twin Turbocharged Aftercooled (522-597 bkW, 700-800 bhp)
  • Air-to-Air Aftercooled

Charging System

  • Charging alternator 24 volt, 50 amp

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

  • MEUI 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

Need installed dimensions with enclosure and tank? See Model Configurations