Files Unfair Competition Suits Against Four Companies For Counterfeiting Its Elastomer Products

LAKE FOREST, ILLINOIS, November 10, 2003 - Tenneco Automotive (NYSE: TEN) announced today that the company has filed suit against four Asia-based companies for counterfeiting Tenneco Automotive elastomer products, which the company sells in the original equipment and replacement parts market primarily for vehicle suspension systems.

Tenneco Automotive took the legal action against the following companies after finding counterfeited Tenneco Automotive bushings on display at each of their booths during the AAPEX trade show in Las Vegas last week:

• Altezza Company Ltd., Taipei, Taiwan
• Hill/Progressive Gear Industries, Delhi, India
• Keystone Company Ltd., Shihueng-City, South Korea
• Sheng Mhau, Taiping Taichung Hsien, Taiwan

Tenneco Automotive alleges that these companies were displaying counterfeit bushings with the Clevite®Elastomer and Harris™ brand names. Additionally, many of the counterfeit bushings on display included Tenneco Automotive's part numbers and Rubber Manufacturers Association codes.

"Counterfeiting and intellectual property violations represent a multi-billion dollar problem in our industry," said Mark Frissora, chairman and CEO, Tenneco Automotive. "Automotive suppliers, especially those recognized as advanced technology leaders with strong brands, must take swift and aggressive action in protecting the value and integrity of their brand assets and intellectual properties."

The Motor and Equipment Manufacturers Association (MEMA) estimates counterfeit parts cost the industry more than $12 billion per year worldwide.

Tenneco Automotive is a leader in developing and manufacturing elastomer products for the light vehicle and heavy-duty markets, both as replacement parts and as original equipment components. These products are marketed under the respected Clevite® Elastomer brand and include a broad range of bushings, torque rods, mounts, links, and exhaust isolators.

The company filed claims of unfair competition and false designation of origin under the Lanham Act in the U.S. District Court in Nevada. Tenneco Automotive is seeking permanent injunctive relief and unspecified damages.

Tenneco Automotive is a $3.5 billion manufacturing company with headquarters in Lake Forest, Illinois and approximately 19,600 employees worldwide. Tenneco Automotive is one of the world's largest producers and marketers of ride control and exhaust systems and products, which are sold under the Monroe® and Walker® global brand names. Among its products are Sensa-Trac® and Monroe Reflex® shocks and struts, Rancho® shock absorbers, Walker® Quiet-Flow® mufflers and DynoMax® performance exhaust products, and Monroe® Clevite® vibration control components.

CONTACT:
Tenneco Automotive, Media Relations
Jane Ostrander
(1) 847 482 5607
jane.ostrander@tenneco-automotive.com

Tenneco Automotive, Investor Relations
Leslie Hunziker
(1) 847 482 5042
leslie.hunziker@tenneco-automotive.com