Tenneco, Inc. engages in the design, manufacture, market and sale of innovative clean air, powertrain and ride performance products and systems. It operates through the following segments: Clean Air, Powertrain, Ride Performance, and Motorparts. The Clean Air segment offers products and systems designed to reduce pollution and optimize engine performance, acoustic tuning, and weight on a vehicle for light vehicle, commercial truck, and off-highway original equipment customers. The Powertrain segment focuses on original equipment powertrain products for automotive, heavy duty, and industrial applications. The Ride Performance segment sells ride performance solutions and systems to a global original equipment customer base, including noise, vibration, and harshness performance materials, advanced suspension technologies, ride control, and braking. The Motorparts segment consists of broad portfolio of brand-name products in the global vehicle aftermarket within seven product categories including shocks and struts, steering and suspension, braking, sealing, engine, emissions, and maintenance. The company was founded on April 1, 1940 and is headquartered in Lake Forest, IL.