Exhibit 99.906CERT Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Certified Shareholder Report of Principal Capital Value Fund, Inc. (the "Registrant") on Form N-CSR (the "Report"), each of the undersigned officers of the Registrant does hereby certify that, to the best of their knowledge: 1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; 2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. By /s/ Ralch C. Eucher ----------------------------------------------------------------- Ralph C. Eucher, President Date 12/16/2004 --------------------- By /s/ Jill R. Brown ----------------------------------------------------------------- Jill R. Brown, Vice President and Chief Financial Officer Date 12/16/2004 --------------------- This certification is being furnished to the Commission solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of the Form N-CSR filed with the Commission.