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Exhibit 32.1

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER
PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED
BY SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

        Pursuant to Section 1350, Chapter 63 of Title 18, United States Code, as adopted by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned, as Chief Executive Officer of Generac Holdings Inc. (the "Company"), does hereby certify that to my knowledge:

1.

the Company's annual report on Form 10-K for the fiscal year ended December 31, 2009 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and



2.

the information contained in the Company's annual report on Form 10-K for the fiscal year ended December 31, 2009 fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: March 30, 2010 /s/ AARON JAGDFELD
Name:    Aaron Jagdfeld
Title:      Chief Executive Officer

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Exhibit 32.1

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED BY SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002