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 Annual Report on Form 10-K of Tenneco
Automotive Inc. (the "Company") for the period ended December 31, 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

March 16, 2005

    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.