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Industrial Diesel Power Units - Lesser Regulated & Non-Regulated

Cat® industrial engines are ready for your application. These engines deliver the unsurpassed reliability, durability, fuel efficiency, and low cost of ownership you have come to expect from Caterpillar. And our world-class product support will never let you down. All this adds up to a powerful advantage for you. Every Cat industrial diesel and gas engine comes with 75 years of engine experience. Our world-class product line of high-speed and medium-speed industrial engines in a wide range of applications offer power solutions for the most demanding installations and the harshest environments. With power options from 8.2 to 6,100 bkW (11 to 8,180 bhp), Cat industrial diesel and gas engines offer the widest power range in the industry.

Cat®C18 ACERT™ Industrial Power Unit

The Cat® C18 ACERT™ Industrial Power Unit is offered in ratings ranging from 429-470 bkW (575-630 bhp) @ 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.

  • Specification Summary

  • Minimum Rating 429 bkW
  • Maximum Rating 470 bkW
  • Rated Speed 1800-2100
  • Emissions China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent or Non-Certified

Product Details

Power Rating

Minimum Rating 429 bkW
Maximum Rating 470 bkW
Rated Speed 1800-2100

Emission Standards

Emissions China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent or Non-Certified


Engine Configuration Inline 6, 4-Stroke-Cycle Diesel
Bore 145 mm (5.71 in)
Stroke 183 mm (7.2 in)
Displacement 18.1 L (1104.53 in³)
Aspiration Turbocharged Aftercooled (TA)
Compression Ratio 16.3:1
Rotation from Flywheel End Counterclockwise

Power Unit Dimensions - Approximate

Height 1243 mm (48.9 in)
Length 1388 mm (54.6 in)
Weight - Net Dry - Standard Configuration Without Oil, Cooling, Clutch, Compressor, A/C 2197.1 kg (4843.7 lb)
Width 921 mm (36.3 in)
  • Air Inlet System
    •  Turbocharged Aftercooled (429-470 bkW, 575-630 bhp)
    •  Twin Turbocharged Aftercooled (522-597 bkW, 700-800 bhp)
    •  Air-to-Air Aftercooled
  • 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
        • 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

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