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 Quarterly Report of Allis-Chalmers Corporation (the
"Company") on Form 10-Q for the period ending September 30, 2003 as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), I,
Munawar H. Hidayatallah, President, Chief Executive Officer and Chairman of the
Company, certify, to my knowledge, pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 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, as
                  amended; and

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

By: /s/ Munawar H. Hidayatallah
    ------------------------------
    Munawar H. Hidayatallah
    Chief Executive Officer

The foregoing certification is being furnished solely pursuant to Section 906 of
the Sarbanes-Oxley Act of 2002 (subsection (a) and (b) of Section 1350, Chapter
63 of Title 18, United States Code) and is not being filed as part of the Form
10-Q or as a separate disclosure document.