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 and emissions. Equipment powered by C18 ACERT engines include, 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: 429-522 bkW (575-700 bhp) @ 1800-2100 rpm, meet China Stage II, U.S. EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. Ratings: 570-597 bkW (765-800 bhp) @ 1800-2100 rpm meet U.S. EPA Tier 2 equivalent emission standards. Ratings below 560 bkW (751 bhp) are available using U.S. EPA and EU Flexibility, and for other global regulated and non-regulated areas. Ratings above 560 bkW (751 bhp are available using U.S. EPA Flexibility and for other global regulated and non-regulated areas.