Naylor Automotive Engineering Co, 4645 S Knox Ave, Chicago, IL 60632, US

Certified Power is a manufacturer of power-train components and a distributor of hydraulic, pneumatic, electronic and drive-train components for industrial and mobile applications. In addition to the manufacture of drive shafts, the company distributes couplings and related items for the original-equipment manufacturer, mobile equipment market. Certified Power is the parent company of a number of divisions and subsidiaries. These companies are involved in manufacturing or distribution of hydraulic and pneumatic components, accessories and systems for industrial and mobile applications. It also manufactures and distributes drive shafts for pumps used in waste-handling and water-pumping applications and systems for municipal vehicles. Certified Power is headquartered in Mundelein, Ill.