EXHIBIT 99.1


NEWS FROM:                                    STEWART & STEVENSON
                                              CORPORATE HEADQUARTERS
           [STEWART & STEVENSON LOGO]         P.O. BOX 1637
                                              HOUSTON, TX  77251-1637

                                   Client:   Stewart & Stevenson Services, Inc.

                                  Contact:   John Simmons, CFO
                                             Stewart & Stevenson Services, Inc.
                                             713-868-7700
FOR IMMEDIATE RELEASE
                                             Ken Dennard / kdennard@easterly.com
                                             Lisa Elliott / lisae@easterly.com
                                             Easterly Investor Relations
                                             713-529-6600


            STEWART & STEVENSON ANNOUNCES FISCAL 2002 SECOND QUARTER
                  EARNINGS RELEASE AND CONFERENCE CALL SCHEDULE


HOUSTON - AUGUST 22, 2002 - Stewart & Stevenson Services, Inc. (NASDAQ: SSSS),
today announced plans to release its fiscal 2002 first quarter results on
Thursday, August 29, 2002 at 6:00 a.m. eastern time. In conjunction with the
release, Stewart & Stevenson has scheduled a conference call, which will be
broadcast live over the Internet, on Thursday, August 29, at 11:00 a.m. eastern
time.

      What: Stewart & Stevenson Second Quarter Earnings Call

      When: Thursday, August 29, 2002 - 11:00 a.m. eastern time

      How: Live via phone - By dialing 303-262-2130 and asking for the Stewart &
      Stevenson call at least 10 minutes prior to the start time - OR live over
      the Internet by logging on to the web address below

      Where: HTTP://WWW.SSSS.COM

A telephonic replay of the conference call will be available through Thursday,
September 5, 2002, and may be




accessed by dialing 303-590-3000 and using pass code 494922. An audio archive
will also be available on the Stewart & Stevenson website at www.ssss.com
shortly after the call and will be accessible for approximately 90 days. For
more information, please contact Karen Roan at Easterly Investor Relations at
713-529-6600 or email KAREN@EASTERLY.COM.

Stewart & Stevenson Services, Inc., founded in 1902, is a billion-dollar company
that manufactures, distributes, and provides service for a wide range of
industrial products and diesel-powered equipment to key industries worldwide,
including petroleum, power generation, defense, airline, marine, and
transportation. For more information on Stewart & Stevenson visit WWW.SSSS.COM.

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