EXHIBIT 32.1


                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


    In connection with the accompanying Quarterly Report on Form 10-Q of Tenneco
Automotive Inc. (the "Company") for the period ended September 30, 2004, as
filed with the Securities and Exchange Commission on the date hereof (the
"Report"), and pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002, Mark P. Frissora, as Chief
Executive Officer of the Company, and Kenneth R. Trammell, as Chief Financial
Officer of the Company, hereby certify that:

        (1) The Report fully complies with the requirements of Section 13(a) or
    15(d) of the Securities Exchange Act of 1934; and

        (2) The information contained in the Report fairly presents, in all
    material respects, the financial condition and results of operations of the
    Company.

                                                       /s/ MARK P. FRISSORA
                                                   -----------------------------
                                                          Mark P. Frissora
                                                      Chief Executive Officer


                                                      /s/ KENNETH R. TRAMMELL
                                                   -----------------------------
                                                        Kenneth R. Trammell
                                                      Chief Financial Officer


November 5, 2004


    This certification shall not be deemed "filed" by the Company for purposes
of Section 18 of the Securities Exchange Act of 1934. In addition, this
certification shall not be deemed to be incorporated by reference into any
filing under the Securities Exchange Act of 1933 or the Securities Exchange Act
of 1934.

    A signed original of this written statement required by Section 906 has been
provided to the Company and will be retained by the Company and furnished to the
Securities and Exchange Commission or its staff upon request.