C27 ACERT Tier 4i

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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. C27 ACERT oilfield diesel generator set. Ratings: 725 ekW (1035 kVA) @ 60 Hz (1800 rpm) meets U.S. EPA Tier 4 interim emission standards.

Engine Specifications

  • Maximum Rating 725 ekW (907 - 1035 kVA) 725 ekW (907 - 1035 kVA)
  • Minimum Rating 725 ekW (907 - 1035 kVA) 725 ekW (907 - 1035 kVA)
  • Emissions/Fuel Strategy U.S. EPA Tier 2, U.S. EPA Tier 4 interim U.S. EPA Tier 2, U.S. EPA Tier 4 interim
  • Aspiration Turbocharged, aftercooled Turbocharged, aftercooled
  • Manifold Type Dry Dry
  • Bore 5.4 in 137.2 mm
  • Stroke 6.0 in 152.4 mm
  • Displacement 1648.0 in³ 27.0 l
  • Engine Control and Protection ADEM A4 ADEM A4
  • Generator Set Control EMCP 4.2 EMCP 4.2
  • Generator SR4B SR4B
  • Fuel System MEUI MEUI
  • Frequency - Speed 60 Hz (1800 rpm) 60 Hz (1800 rpm)

Capacity for Liquids

  • Fuel Diesel Diesel


  • Length 186.0 in 4725.0 mm
  • Width 77.0 in 1950.0 mm
  • Height 86.0 in 2180.0 mm
  • Weight 20000.0 lb 9072.0 kg

EMCP 4.2 Control Panel

- Integrated control system and communications gateway
- EMCP 4.2 is standard and offers basic engine/generator monitoring, metering and protection and an open protocol allowing for simple integration
- Features more advanced options including power metering, modbus capability, and programmable discrete output

Product Support Offered Through the Global Cat Dealer Network

- 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 options - SOSSM program matches your oil and coolant samples against Caterpillar set standards to determine: Internal engine component condition Presence of unwanted fluids Presence of combustion by-products Site-specific oil change interval

Over 80 Years of Engine Manufacturing Experience

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

Web Site

For all your petroleum power requirements, visit

C27 ACERT Tier 4i Standard Equipment

Air Inlet System

  • Heavy-duty dual element air cleaner
  • Service indicator

Cooling System

  • Radiator package mounted (50° C)
  • Side-by-side cores
  • Coolant drain line with valve at edge of base
  • Coolant level sight gauge
  • Fan and belt guards
  • Cat Extended Life Coolant
  • Metal top and bottom tanks

Exhaust System

  • Dry exhaust manifold

Fuel System

  • Primary fuel filter
  • Secondary fuel filter
  • Fuel priming pump
  • Fuel transfer pump


  • SR4B
  • Class H insulation
  • Random wound
  • IP23 protection
  • Cat DVR
  • Permanent magnet excitation
  • Two-bearing, close coupled alignment


  • EMCP 4.2 control panel
  • Emergency stop pushbutton

Lube System

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

Mounting System

  • Heavy-duty oilfield welded steel base (skiddable)
  • Anti-vibration mounts
  • Designed welded base for increased durability (C-channel design)

Starting/Charging System

  • 24-volt starting motor
  • 45-amp charging alternator


  • Paint — Caterpillar yellow except rails and radiators (gloss black)
  • Flywheel and flywheel housing — SAE No. 0
  • Engine lifting eyes

C27 ACERT Tier 4i Optional Equipment

Air Inlet System

  • Pre-cleaners

Control System

  • Direct rack control

Cooling System

  • Jacket water heater

Exhaust System

  • Manifold and turbocharger guards
  • Expander


  • Self excited

Starting/Charging System

  • Air starting motor

Mounting System

  • Short base - 4725 mm (186 in) total length (does not include drag bars)

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