EX-32.1 4 aaon_10ka123113exhibit321.htm EXHIBIT

aaon_10ka123113exhibit321

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of AAON, Inc. (the “Company”), on Form 10-K for the year ended December 31, 2013, as filed with the Securities and Exchange Commission on the date hereof (the “Report”) together with Form 10-K/A filed on March 27, 2014 amending such Report, I, Norman H. Asbjornson, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1)           The Report 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 our results of operations.

Dated:	March 27, 2014
		/s/ Norman H. Asbjornson
		Norman H. Asbjornson Chief Executive Officer