EXHIBIT 32.1 CERTIFICATION UNDER SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 "CORPORATE RESPONSIBILITY FOR FINANCIAL REPORTS" I, Frederick A. Krehbiel, Co-Chairman and Chief Executive Officer of Molex Incorporated, certify that: 1. The quarterly report on Form 10-Q for the quarter ended December 31, 2004, as filed with the Securities and Exchange Commission on the date hereof, 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 this quarterly report fairly presents, in all material respects, the financial condition of the Company. Date: March 21, 2005 /S/ FREDERICK A. KREHBIEL __________________________ Frederick A. Krehbiel Co-Chairman and Chief Executive Officer The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Section 1350, Chapter 63 of Title 18, United States Code) and is not being filed as part of the Report or as a separate disclosure document. A signed original of this written statement required by Section 906 has been provided to Molex Incorporated and will be retained by Molex Incorporated and furnished to the Securities and Exchange Commission or its staff upon request. EXHIBIT 32.2 CERTIFICATION UNDER SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 "CORPORATE RESPONSIBILITY FOR FINANCIAL REPORTS" I, Robert B. Mahoney, Acting Chief Financial Officer, Executive Vice President and President, Far East South of Molex Incorporated, certify that: 1. The quarterly report on Form 10-Q for the quarter ended December 31, 2004, as filed with the Securities and Exchange Commission on the date hereof, 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 this quarterly report fairly presents, in all material respects, the financial condition of the Company. Date: March 21, 2005 /S/ ROBERT B. MAHONEY ________________________ Robert B. Mahoney Acting Chief Financial Officer Executive Vice President and President, Far East South The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Section 1350, Chapter 63 of Title 18, United States Code) and is not being filed as part of the Report or as a separate disclosure document. A signed original of this written statement required by Section 906 has been provided to Molex Incorporated and will be retained by Molex Incorporated and furnished to the Securities and Exchange Commission or its staff upon request.