Cat C27 ACERT engines are the ideal solution for your demanding operations in the oilfield. Decades of field operation and intense research and development allow Cat C27 ACERT engines to deliver excellent performance with low operating costs while meeting the tightest environmental requirements.This is an ideal engine for applications that require Tier 4 Final emissions certifications in land mechanical drilling equipment such as mud pumps.Cat C27 ACERT™ Industrial Diesel Engine. Ratings: 597-708 bkW (800-950 bhp) @ 1800 rpm are designed to meet U.S. EPA Tier 4 Final emission standards.