SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

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                                    FORM 8-K

                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(D) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


Date of report:                                                 August 17, 2004
Date of earliest event reported:                                August 17, 2004


                         CORE MOLDING TECHNOLOGIES, INC.
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               (Exact Name of Registrant as Specified in Charter)


Delaware                               001-12505                31-1481870
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(State of Other Jurisdiction          (Commission              (IRS Employer
     of  Incorporation)               File Number)          Identification No.)


800 Manor Park Drive, P.O. Box 28183
Columbus, Ohio                                                  43228-0183
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(Address of Principle Executive Offices)                        (Zip Code)


Registrant's telephone number, including area code         (614) 870-5000
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          (Former Name of Former Address, if Changed Since Last Report)




         The information in this Current Report on Form 8-K, including the
exhibits, is furnished pursuant to Item 9 and shall not be deemed "filed" for
the purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise
subject to the liabilities under that Section. Furthermore, the information in
this Current Report on Form 8-K, including the exhibits, shall not be deemed to
be incorporated by reference into the filings of Core Molding Technologies, Inc.
under the Securities Act of 1933.

ITEM 5.  OTHER EVENTS AND REQUIRED FD DISCLOSURES

         On August 17, 2004, Core Molding Technologies, Inc. announced that a
new labor agreement has been reached with Scioto Lodge No. 1471 of the
International Association of Machinists and Aerospace Workers ("IAM") at its
Columbus, Ohio manufacturing facility. A copy of the press release announcing
this event is included in this Form 8-K as exhibit 99(a).

ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS

         All exhibits are furnished pursuant to Item 9.

         Exhibit
         Number           Exhibit
         -------          -------
          99(a)           Press release announcing that a new new labor
                          agreement has been reached with Scioto Lodge No. 1471
                          of the International Association of Machinists and
                          Aerospace Workers ("IAM") at its Columbus, Ohio
                          manufacturing facility.



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                                   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.


                                            Core Molding Technologies, Inc.
                                          -----------------------------------
                                                        (Registrant)




Date   August 17, 2004                    By      /s/ Herman F. Dick, Jr.
     ------------------                       -------------------------------
                                                       (Signature)

                                                    Herman F. Dick, Jr.
                                          Treasurer and Chief Financial Officer





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Index of Exhibits:

         Exhibit
         Number           Exhibit
         -------          -------
          99(a)           Press release announcing that a new new labor
                          agreement has been reached with Scioto Lodge No. 1471
                          of the International Association of Machinists and
                          Aerospace Workers ("IAM") at its Columbus, Ohio
                          manufacturing facility.



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