Tenneco Inc is aglobal manufacturing company, is pioneering global ideas for cleaner air, and smoother, quieter and safer transportation We're one of the worlds leading designers, manufacturers and distributors of Clean Air and Ride Performance products and technology solutions for diversified markets, including light vehicle, commercial truck, off-highway equipment and the aftermarket We serve our customers from 91 manufacturing facilities and 15 engineering and technical centers around the world, delivering advanced technologies, quality products, powerful brands and outstanding engineering and manufacturing capabilities enneco's growth is driven by strong product lines, each with distinct strategic imperatives designed.