UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                       ----------------------------------

                                    FORM 8-K

                                 Current Report

                     Pursuant To Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

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        Date of Report (Date of earliest event reported): April 21, 2005

                             TENNECO AUTOMOTIVE INC.
               (Exact Name of Registrant as Specified in Charter)




                                                                      
            Delaware                           1-12387                          76-0515284
   (State or other jurisdiction        (Commission File Number)      (I.R.S. Employer of Incorporation
of incorporation or organization)                                           Identification No.)





         500 NORTH FIELD DRIVE, LAKE FOREST, ILLINOIS             60045
           (Address of Principal Executive Offices)            (Zip Code)




       Registrant's telephone number, including area code: (847) 482-5000




         Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR
    230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
    240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))




ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

         On April 21, 2005, Tenneco Automotive announced its first quarter 2005
results of operations. Exhibit 99.1 to this Form 8-K report presents the
company's press release, including the company's consolidated statements of
income, balance sheets and statements of cash flows for the periods ended March
31, 2004 and 2005, as released by the company on April 21, 2005, and such
Exhibit is incorporated herein by reference. Exhibit 99.1 also includes
information regarding the company's scheduled conference call to discuss the
company's results of operations for the first quarter 2005, as well as other
matters that may impact the company's outlook.

ITEM 8.01. OTHER EVENTS.

The company also announced that it has been notified by General Motors that GM's
current advanced payment program will terminate during the second quarter. At
March 31, 2005, that program had reduced the company's receivables by $74
million. Tenneco Automotive believes the GM decision will have minimal impact on
its liquidity given that Tenneco Automotive expanded its borrowing facilities by
$55 million during the first quarter.

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.



Exhibit No.       Description
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99.1              Tenneco Automotive Inc.'s press release dated April 21, 2005.







                                   SIGNATURES


         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


                                              TENNECO AUTOMOTIVE INC.


Date:    April 21, 2005                         By:  /s/ Kenneth R. Trammell
                                                     -----------------------
                                                     Kenneth R. Trammell
                                                     Senior Vice President and
                                                     Chief Financial Officer