EXHIBIT 99a


                                                      CONTACT:  MEDIA INQUIRIES
                                                                 Krista McClure
                                                                 (248) 435-7115
                                                krista.mcclure@arvinmeritor.com

                                                             INVESTOR INQUIRIES
                                                                  Alice McGuire
                                                                 (248) 655-2159
                                                 alice.mcguire@arvinmeritor.com


        ARVINMERITOR NAMES DAVID W. DEVONSHIRE TO THE BOARD OF DIRECTORS
                             EFFECTIVE JULY 22, 2004

     TROY, MICH. (April 21, 2004) - ArvinMeritor Inc. (NYSE:ARM) today announced
that David W. Devonshire, executive vice president and chief financial officer
for Motorola, Inc., has been elected to the ArvinMeritor Board of Directors,
effective July 22, 2004. The announcement was made following the company's board
meeting held at corporate headquarters in Troy, Mich. Motorola is a global
leader in providing integrated communications and embedded electronic solutions.

     "Dave will be a great asset to the ArvinMeritor team," said Chairman and
CEO Larry Yost. "He has extensive experience in sound fiscal leadership, as well
as an astute sense of business. We're fortunate to have him with us."
     Before joining Motorola in 2002, Devonshire was executive vice president
and chief financial officer for Ingersoll-Rand, a leading diversified industrial
firm. For five years before that, he served as senior vice president and chief
financial officer for Owens Corning. Devonshire began his career with KPMG in
1968, followed by financial positions with Baxter International, Inc. and Mead
Corporation. After that, he joined Honeywell as corporate vice president and
controller, a position he held for two years, before being named the firm's
corporate vice president of finance in 1992.

     Devonshire serves on the Boards of Roper Industries and the Private Sector
Council, as well as on the advisory board of CFO Magazine. With a Bachelor of
Science




degree in accounting from the Widener University in Pennsylvania, Devonshire
holds an MBA from the Kellogg School of Management at Northwestern University in
Chicago.

     ArvinMeritor, Inc. is a premier $8-billion global supplier of a broad range
of integrated systems, modules and components to the motor vehicle industry. The
company serves light vehicle, commercial truck, trailer and specialty original
equipment manufacturers and related aftermarkets. Headquartered in Troy, Mich.,
ArvinMeritor employs approximately 32,000 people at more than 150 manufacturing
facilities in 27 countries. ArvinMeritor common stock is traded on the New York
Stock Exchange under the ticker symbol ARM. For more information, visit the
company's Web site at: www.arvinmeritor.com.

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