Request Info

Contact Us For Price


Maximum Rating545 ekW (680 kVA)
Minimum Rating440 ekW (550 kVA)
Emissions/Fuel StrategyU.S. EPA Tier 2, EU Stage II
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.


Maximum Rating545 ekW (680 kVA)
Minimum Rating440 ekW (550 kVA)
Emissions/Fuel StrategyU.S. EPA Tier 2, EU Stage II
AspirationTurbocharged, air-to-air aftercooled
Manifold TypeDry
Bore5.7 in (145 mm)
Stroke7.2 in (183 mm)
Displacement1106 in³ (18.1 l)
Engine Control and ProtectionADEM A4
Generator Set ControlEMCP 3.1
Fuel SystemMEUI
Length143 in (3632 mm)
Width60 in (1524 mm)
Height83.3 in (2115 mm)
Weight11095 lb (5033 kg)
Frequency - Speed50/60 Hz (1500/1800 rpm)

Benefits and Features

- More than 2,200 dealer outlets - Cat factory-trained dealer technicians service every aspect of your Cat petroleum product - Worldwide parts availability, service, and warranty - Preventive maintenance agreements available for repairbefore- failure opti

Ownership of these manufacturing processes enables Caterpillar to produce high quality, dependable products.

For all your petroleum power requirements, visit

Standard Equipment

  • Dual element air cleaner
  • Service indicator
  • 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
  • Dry exhaust manifold
  • Turbo outlet elbow
  • 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
  • RH extended cable access box
  • EMCP 3 Control Panel
  • High efficiency oil filter
  • Oil drain valves
  • Fumes disposal
  • Gear-type lube oil pump
  • Steel base frame (skidable)
  • 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

Optional Equipment

  • Heavy-duty air cleaner with precleaner
  • Mufflers
  • Weld Flange
  • Permanent magnet excitation
  • Oversize and premium generators
  • Anti-condensation space heaters available with permanent magnet excitation generators
  • Jacket water heater with shutoff valves
  • Oversized batteries
  • Load share module