Exhibit 32.1

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

I, Robert G. Ruhlman, 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 Annual Report on Form 10-K of the Company for the period
                  ended December 31, 2003 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.

March 26, 2004                 /s/ Robert G. Ruhlman
                               ---------------------------------------------
                                   Robert G. Ruhlman
                                   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.