C18 ACERT™ Tier 4 Final Petroleum Engine

Well Service Engines C18 ACERT™ (T4 Final)

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Key Specs

Maximum Rating
800 BHP
597 bkW
EPA Tier 4 Final and EU Stage IV
EPA Tier 4 Final and EU Stage IV
1104 in³
18.1 l


Cat C18 ACERT engines are the ideal solution for your demanding operations in the oilfield. Decades of field operation and intense research and development allow Cat C18 ACERT engines to deliver excellent performance with low operating costs while meeting tight environmental requirements. This is an ideal engine for applications that require compliance with the highest emission standards in well service applications such as pump skids, nitrogen units, acidizing units, cementing units, blenders, and hydraulic power units. Cat engines are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. C18 ACERT engines with ratings: 429-470 bkW (575-630 bhp)@ 2000 rpm are designed to meet U.S. EPA Tier 4 Final, EU Stage IV emission standards. Ratings 563-597 bkW (755-800 bhp) @ 1800 rpm are designed to meet U.S. EPA Tier 4 Final emission standards. This information about Emissions describes the particular rating's emissions technology. For more information about emissions certification, please contact your local Cat dealer.

Product Specifications for C18 ACERT™ (T4 Final)

Maximum Rating 800 BHP 597 bkW
Displacement 1104 in³ 18.1 l
Minimum Rating 755 BHP 563 bkW
Governor and Protection ADEM A4 ADEM A4
RPM 1800 r/min 1800 r/min
Aspiration Turbocharged-Aftercooled Turbocharged-Aftercooled
Flywheel and Flywheel Housing SAE No. 0 or SAE No. 1 SAE No. 0 or SAE No. 1
Flywheel Teeth 136 (SAE 0), 113 (SAE 1) 136 (SAE 0), 113 (SAE 1)
Rotation from Flywheel End Counterclockwise Counterclockwise
Stroke 7.2 in 183 mm
Bore 5.7 in 145 mm
Emissions EPA Tier 4 Final and EU Stage IV EPA Tier 4 Final and EU Stage IV
Length 60.2 in 1530.3 mm
Width 37.8 in 960.5 mm
Height 50.5 in 1281.9 mm
Weight 3482 lb 1580 kg
Cooling System 7.1 gal (US) 26.9 l

C18 ACERT™ (T4 Final) Standard Equipment

Air Inlet System

  • Turbocharged Aftercooled

Control System

  • Electronic control system, over-foam wiring harness, automatic altitude compensation, power compensated for fuel temperature, configurable software features, engine monitoring system SAE J1939 broadcast and control, integrated Electronic Control Unit (ECU) remote fan control

Cooling System

  • Vertical outlet thermostat housing, centrifugal water pump

Exhaust System

  • Dry exhaust manifold, Diesel Oxidation Catalyst (DOC)

Flywheels and Flywheel Housing

  • SAE 0 and SAE 1 flywheel housing

Fuel System

  • MEUI injection; primary fuel filter, secondary fuel filters, fuel transfer pump, electronic fuel priming

Lube System

  • Open crankcase ventilation system, oil cooler, oil filler, oil filter, oil dipstick, oil pump (gear driven), choice of sumps (front, rear, high-capacity center, and high-capacity front)

Power Take Off

  • SAE B and SAE C drives available, engine power can also be taken from the front of the engine on some applications


  • Paint: Cat yellow; vibration damper; lifting eyes

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C18 ACERT™ Tier 4 Final Petroleum Engine

C18 ACERT™ Tier 4 Final Petroleum Engine

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