Exhibit 32.1

Certification Pursuant to

18 U.S.C. § 1350

As Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the quarterly report of Modine Manufacturing Company (the “Company”) on Form 10-Q for the period ended December 26, 2005 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David B. Rayburn, President and Chief Executive Officer of the Company certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

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

Date:February 6, 2006

/s/ David B. Rayburn

David B. Rayburn

President and Chief Executive Officer

This certification accompanies the Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed “filed” by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.