EXHIBIT 32.1



SECTION 1350 CERTIFICATION OF CHIEF EXECUTIVE OFFICER



In connection with the Quarterly Report of Dresser, Inc. (Dresser) on Form 10-Q for the period ended March 31,
2003 as filed with the Securities and Exchange Commission (the SEC) on December 12, 2003 (the Report), the undersigned hereby certifies, pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, to his knowledge and upon a review of the Report, that, subject to the qualifications noted below:



| | (1) |  | The Report fully complies, in all material respects, with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
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| | (2) |  | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Dresser as of the dates and for periods
presented as required by such Report.
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In
rendering this certification, the undersigned notes the following qualifications, each of which limits and qualifies the above certification because they may materially alter the information required to be in the Report for the above certification
to be correct:



| | (a) |  | The Report was not filed within 45 days after the end of Dressers fiscal quarter as required by General Instruction A to Form 10-Q.
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| | (b) |  | Each of the qualifications and limitations set forth in the Report, including the notes to the financial statements contained therein and the matters covered under Item 2.
Managements Discussion and Analysis of Financial Condition and Results of Operations and Item 4. Controls and Procedures.
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This certification is qualified by the foregoing and is based upon, among other things, the undersigneds
responsibilities as chief executive officer, his own due diligence and representations made by certain members of Dressers senior management.



|Dated: December 11, 2003 |  |  |  |                        
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|                         |  |  |  | /s/ Patrick M. Murray  
|                         |  |  |  | Patrick M. Murray      
|                         |  |  |  | Chief Executive Officer



This certification is
provided pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by Dresser for purposes of Section 18 of the Securities Exchange Act of 1934, as
amended.