Atel Cash Distribution Fund Vi (XXAAY) 10-K 2009 FY Annual report

EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. §1350,

AS ADOPTED PURSUANT TO

§906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of ATEL Cash Distribution Fund VI, L.P. (the “Partnership”) on Form 10-K for the year ended December 31, 2009 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Dean L. Cash, President and Chief Executive Officer of ATEL Financial Services, LLC, General Partner of the Partnership, hereby 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 results of operations of the Partnership.

Date: March 23, 2010

/s/ Dean L. Cash

Dean L. Cash

President and Chief Executive Officer of

ATEL Financial Services, LLC (General Partner)

A signed original of this written statement required by Section 906 has been provided to the Partnership and will be retained by the Partnership and furnished to the Securities and Exchange Commission or its staff upon request.