Exhibit 32.1

     CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


I, Robert G. Ruhlman, Chairman, President and Chief Executive Officer, of
Preformed Line Products (the "Company"), certify, pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, that:

         1)       The Quarterly Report on Form 10-Q of the Company for the
                  period ended September 30, 2004 which this certification
                  accompanies 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.



November 1, 2004                 /s/ Robert G. Ruhlman
                                 ------------------------
                                 Robert G. Ruhlman
                                 Chairman, President and Chief Executive Officer
                                 (Principal Executive Officer)




A signed original of this written statement required by Section 906 has been
provided to Preformed Line Products Company and will be retained by Preformed
Line Products Company and furnished to the Securities and Exchange Commission or
its staff upon request.