Tenneco Inc. (Tenneco) is a producer of emission control and ride control products and systems for light, commercial and specialty vehicle applications. The Company serves both original equipment vehicle manufacturers (OEMs) and the repair and replacement markets, or aftermarket, worldwide. Tenneco designs, manufactures and sells emission control and ride control systems and products for light, commercial and specialty vehicle applications. It serves the OEMs and replacement markets worldwide through brands, including Monroe, Rancho, Clevite Elastomers, Marzocchi, Axios, Kinetic, and Fric-Rot ride control products and Walker, Fonos, DynoMax, Thrush, and Lukey emission control products. As a parts supplier, the Company produces individual component parts for vehicles, as well as groups of components that are combined as modules or systems within vehicles.