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C11 ACERT™ Dry Manifold Engine

C11 ACERT™ Dry Manifold Engine

At a Glance

Minimum Rating
325 BHP
Maximum Rating
450 BHP
EPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA
47.3 in
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Cat C11 ACERT engines are the ideal solution for your demanding operations in the oilfield. Decades of field operation and intense research and development allow Cat C11 ACERT engines to deliver excellent performance with low operating costs and emissions. Equipment powered by C11 ACERT engines include workover rigs, pump skids, acidizing units, cementing units, 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. C11 ACERT engines, with ratings: 242-336 bkW (325-450 bhp) @ 1800-2100 rpm, meet China Stage II, EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. They are available using U.S. EPA and EU Flexibility, and for other regulated and non-regulated areas.

General Specifications

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Minimum Rating 325BHP
Maximum Rating 450BHP
Governor and Protection Electronic (ADEM™ A3)
Aspiration Turbocharged-Aftercooled
Displacement 681in³
Flywheel and Flywheel Housing SAE 1 or SAE 2
Flywheel Teeth 113 (SAE 1), 138 (SAE 2)
Rotation from Flywheel End Counterclockwise
Stroke 5.51in
Bore 5.12in


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Emissions EPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA


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Length 47.3in
Width 41.6in
Height 46.3in
Weight 1967lb

Capacity for Liquids

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Lube Oil System - Refill 9gal (US)