EX-32.1

Exhibit 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER, SECTION 906

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Michael Occi, the Chief Executive Officer (Principal Executive Officer) of T SERIES BDC LLC (the “Company”), hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

•

the Form 10-Q of the Company for the quarter ended June 30, 2026 as filed with the Securities and Exchange Commission on the date hereof (the “Form 10-Q”), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

•

the information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

     Dated: August 11, 2026

    

     /s/ Michael Occi

    

     Michael Occi

    

     Director and Chief Executive Officer

    

     (Principal Executive Officer)

    