Cat® C9 ACERT™ Industrial Power Unit

Cat® C9 ACERT™ Industrial Power Unit

The Cat® C9 ACERT™ Industrial Power Unit is offered in ratings ranging from 205-261 bkW (275-350 bhp) @ 2200 rpm. These ratings meet China Stage II, U.S. EPA Tier 3 equivalent, or EU Stage IIIA equivalent emission standards. Ratings: 223-261 bkW (300-350 bhp) @ 1800-2200 rpm meet China Stage II, U.S. EPA Tier 2 equivalent, EU Stage II 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.

Download Product Brochure

Power Rating

Minimum Rating
Maximum Rating
Rated Speed
1800-2200 rpm

Emission Standards

China Stage II, U.S. EPA Tier 2 Equivalent or U.S. EPA Tier 3 Equivalent, EU Stage II Equivalent or EU Stage IIIA Equivalent


Engine Configuration
Inline 6, 4-Stroke-Cycle Diesel
112 mm (4.41 in)
149 mm (5.87 in)
8.8 L (537 in³)
Turbocharged Aftercooled (TA)
Compression Ratio
Rotation (from flywheel end)
Cooling System Capacity
44 L (46.5 qt)
Lube System (refill)
32 L (33.8 qt)

Power Unit Dimensions (Approximate. Final dimensions dependent on selected options)

2174.4 mm (85.81 in)
987.8 mm (38.89 in)
2008.1 mm (79.06 in)
Weight - Net Dry (Standard configuration without oil, cooling, clutch, compressor, A/C)
1490 kg (3285 lb)

Standard Equipment

  • Air Inlet System
    • 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
    • HEUI 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