C18 ACERT Tier 2

Land Production Generator Sets C18 ACERT Tier 2

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Key Specs

Maximum Rating
545 ekW (680 kVA)
545 ekW (680 kVA)
Minimum Rating
440 ekW (550 kVA)
440 ekW (550 kVA)


Producing oil and gas is a complex task that requires equipped designed specifically for the oilfield. Cat C-Series oilfield diesel generator sets offer a rugged design capable of withstanding harsh conditions in the oilfield. Decades of experience in engine manufacturing combined with the latest electronics deliver the highest performance, safe operation, low emissions, and simplified operator interface. Cat generator sets are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. C18 ACERT oilfield diesel generator set. Ratings: 440 - 545 ekW (550 - 680 kVA) @ 50 and 60 Hz (1500 and 1800 rpm) meet U.S. EPA Tier 2 equivalent, EU Stage II equivalent emission standards.

Product Specifications for C18 ACERT Tier 2

Maximum Rating 545 ekW (680 kVA) 545 ekW (680 kVA)
Minimum Rating 440 ekW (550 kVA) 440 ekW (550 kVA)
Emissions/Fuel Strategy U.S. EPA Tier 2, EU Stage II U.S. EPA Tier 2, EU Stage II
Aspiration Turbocharged, air-to-air aftercooled Turbocharged, air-to-air aftercooled
Manifold Type Dry Dry
Bore 5.7 in 145 mm
Stroke 7.2 in 183 mm
Displacement 1106 in³ 18.1 l
Engine Control and Protection ADEM A4 ADEM A4
Generator Set Control EMCP 3.1 EMCP 3.1
Generator SR4B SR4B
Fuel System MEUI MEUI
Frequency - Speed 50/60 Hz (1500/1800 rpm) 50/60 Hz (1500/1800 rpm)
Fuel Diesel Diesel
Length 143 in 3632 mm
Width 60 in 1524 mm
Height 83.3 in 2115 mm
Weight 11095 lb 5033 kg

C18 ACERT Tier 2 Standard Equipment

Air Inlet System

  • Dual element air cleaner
  • Service indicator

Cooling System

  • Radiator package mounted (50° C)
  • Coolant drain line with valve at edge of base
  • Coolant level sensor
  • Fan and belt guards
  • Coolant level sight gauge
  • Cat Extended Life Coolant

Exhaust System

  • Dry exhaust manifold
  • Turbo outlet elbow

Fuel System

  • Primary fuel filter with integral water separator
  • Secondary fuel filters
  • Fuel priming pump
  • Flex fuel lines
  • Fuel pressure gauge


  • SR4B brushless, single-bearing, self-excited
  • Class H insulation
  • Random wound
  • IP23 protection
  • Cat DVR 3-phase sensing with selectable volts/Hz
  • 3 sensing CTs and one droop CT
  • Power center

Generator Attachments

  • RH extended cable access box


  • EMCP 3 Control Panel

Lube System

  • High efficiency oil filter
  • Oil drain valves
  • Fumes disposal
  • Gear-type lube oil pump

Mounting System

  • Steel base frame (skidable)

Starting/Charging System

  • 24-volt starting motor
  • 45-amp charging alternator
  • Battery rack
  • Battery disconnect switch


  • Paint — Caterpillar yellow except rails and radiators (gloss black)
  • Flywheel and flywheel housing — SAE No. 1

C18 ACERT Tier 2 Optional Equipment

Air Inlet System

  • Heavy-duty air cleaner with precleaner

Exhaust System

  • Mufflers
  • Weld Flange


  • Permanent magnet excitation
  • Oversize and premium generators
  • Anti-condensation space heaters available with permanent magnet excitation generators

Starting/Charging System

  • Jacket water heater with shutoff valves
  • Oversized batteries


  • Load share module

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C18 ACERT Tier 2

C18 ACERT Tier 2

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