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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® C15 Industrial Power Unit

The Cat® C15 ACERT™ Industrial Power Unit is offered in ratings ranging from 328-403 bkW (440-540 bhp) @ 1800-2100 rpm. These ratings meet China Stage II, U.S. EPA Tier 3 equivalent and EU Stage IIIA equivalent 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 328 bkW
  • Maximum Rating 403 bkW
  • Rated Speed 1800-2100 rpm
  • Emissions China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent

Product Details

Power Rating

Minimum Rating 328 bkW
Maximum Rating 403 bkW
Rated Speed 1800-2100 rpm

Emission Standards

Emissions China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent


Engine Configuration Inline 6, 4-Stroke-Cycle Diesel
Bore 137.2 mm (5.4 in)
Stroke 171.4 mm (6.75 in)
Displacement 15.2 L (927.56 in³)
Aspiration Turbocharged Aftercooled (TA)
Compression Ratio 18:1
Rotation from Flywheel End Counterclockwise

Power Unit Dimensions - Approximate

Weight - Net Dry - Standard Configuration Without Oil, Cooling, Clutch, Compressor, A/C 2055 kg (4531.5 lb)
Width 1316.6 mm (51.8 in)
Length 2447.7 mm (96.4 in)
Height 2629.5 mm (103.5 in)
  • Air Inlet System
    •  Turbocharged
    •  Air-to-Air Aftercooled
  • Turbocharged
    • Air-to-Air Aftercooled
      • 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

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