CERTIFICATION PURSUANT TO RULE 30A-2(B) UNDER THE 1940 ACT AND SECTION 906 OF
                             THE SARBANES-OXLEY ACT

I, James A. Bowen,  Chairman of the Board,  President and Chief Executive
Officer of First Defined Portfolio Fund, LLC (the "Registrant"), certify that:

         1.     The Form N-CSR of the Registrant  (the "Report")  fully complies
                with  the   requirements  of  Section  13(a)  or  15(d)  of  the
                Securities Exchange Act of 1934, as amended; and

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


Date:    FEBRUARY 26, 2008                      /S/ JAMES A. BOWEN
     ----------------------                 ------------------------------------
                                                James A. Bowen, Chairman of the
                                                Board, President and Chief
                                                Executive Officer
                                                (principal executive officer)


I, Mark R. Bradley,  Treasurer,  Controller,  Chief Financial Officer and Chief
Accounting Officer of First Defined Portfolio Fund, LLC (the "Registrant"),
certify that:

         1.     The Form N-CSR of the Registrant  (the "Report")  fully complies
                with  the   requirements  of  Section  13(a)  or  15(d)  of  the
                Securities Exchange Act of 1934, as amended; and

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


Date:    FEBRUARY 26, 2008                      /S/ MARK R. BRADLEY
     ----------------------                 ------------------------------------
                                                Mark R. Bradley, Treasurer,
                                                Controller, Chief Financial
                                                Officer and Chief Accounting
                                                Officer
                                                (principal financial officer)