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Key Specs
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.
| Maximum Rating | 450 BHP 336 bkW |
| Displacement | 681 in³ 11.15 l |
| Minimum Rating | 325 BHP 242 bkW |
| Governor and Protection | Electronic (ADEM™ A3) Electronic (ADEM™ A3) |
| Aspiration | Turbocharged-Aftercooled Turbocharged-Aftercooled |
| Flywheel and Flywheel Housing | SAE 1 or SAE 2 SAE 1 or SAE 2 |
| Flywheel Teeth | 113 (SAE 1), 138 (SAE 2) 113 (SAE 1), 138 (SAE 2) |
| Rotation from Flywheel End | Counterclockwise Counterclockwise |
| Stroke | 5.51 in 140 mm |
| Bore | 5.12 in 130 mm |
| Emissions | EPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA, IMO II EPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA, IMO II |
| Length | 47.3 in 1201 mm |
| Width | 41.6 in 1057 mm |
| Height | 46.3 in 1176 mm |
| Weight | 1967 lb 892.22 kg |
| Lube Oil System - Refill | 9 gal (US) 34 l |
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