C13 ACERT™ Tier 4 Interim Well Servicing Engines

Well Service Engines C13 ACERT™ (Tier 4i)

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Key Specs

Maximum Rating
520 BHP
388 bkW
U.S. EPA Tier 4 Interim, EU Stage IIIB
U.S. EPA Tier 4 Interim, EU Stage IIIB
762.8 in³
12.5 l


Cat C13 ACERT engines are the ideal solution for your demanding operations in the oilfield. Decades of field operation and intense research and development allow Cat C13 ACERT engines to deliver excellent performance with low operating costs while meeting tight environmental requirements.This is an ideal engine for applications that require Tier 4 Interim or EU Stage IIIB emissions certifications in well service applications such as workover rigs, pump skids, 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.C13 ACERT engines, with ratings: 287-388 bkW (385-520 bhp) @ 1800-2100 rpm, meet U.S. EPA Tier 4 Interim, EU Stage IIIB emission standards and are designed to meet U.S. EPA Tier 4 Final, EU Stage IV 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 C13 ACERT™ (Tier 4i)

Maximum Rating 520 BHP 388 bkW
Displacement 762.8 in³ 12.5 l
Minimum Rating 385 BHP 287 bkW
Governor and Protection Electronic ADEM™ A4 Electronic ADEM™ A4
Aspiration Turbocharged-Aftercooled Turbocharged-Aftercooled
Flywheel and Flywheel Housing SAE No. 1 SAE No. 1
Flywheel Teeth 113 113
Rotation from Flywheel End Counterclockwise Counterclockwise
Stroke 6.2 in 157 mm
Bore 5.1 in 130 mm
Emissions U.S. EPA Tier 4 Interim, EU Stage IIIB U.S. EPA Tier 4 Interim, EU Stage IIIB
Length 47.4 in 1203 mm
Width 36.74 in 933.14 mm
Height 46.7 in 1186 mm
Weight 2976 lb 1350 kg
Lube Oil System - Refill 35.9 gal (US) 34 l
Cooling System 19.8 gal (US) 18.7 l

C13 ACERT™ (Tier 4i) Standard Equipment

Air Inlet System

  • Turbocharged Air-to-Air 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, guidance on cooling system design available to ensure machine reliability.

Exhaust System

  • Clean Emissions Module (CEM) that includes Diesel Particulate Filter (DPF), Diesel Oxidation Catalyst (DOC), and Cat Regeneration System, optional exhaust outlet

Flywheels and Flywheel Housing

  • SAE No. 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, deep front, deep rear, shallow)

Power Take Off

  • SAE A, SAE B, 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

C13 ACERT™ (Tier 4i) Optional Equipment

Engine-Mounted Transmission Oil Cooler

  • integration withengine cooling system allows ease of installation and a tighteroverall engine package

Engine Brakes

  • braking capabilities for mobile applications

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