PROSPECTUS SUPPLEMENT NO. 6

                                $415,000,000
                              SPX CORPORATION
                   LIQUID YIELD OPTION(TM) NOTES DUE 2021
                            (ZERO COUPON-SENIOR)
                                    AND
                        COMMON SHARES ISSUABLE UPON
                  CONVERSION AND/OR PURCHASE OF THE LYONS

          This prospectus supplement supplements the prospectus dated
December 3, 2001 of SPX Corporation, as supplemented December 13, 2001,
December 27, 2001, January 11, 2002, March 27, 2002 and August 23, 2002,
relating to the sale by certain of our securityholders (including their
pledgees, donees, assignees, transferees, successors and others who later
hold any of our securityholders' interests) of up to $415,000,000 aggregate
principal amount at maturity of LYONs and the common shares issuable upon
conversion, and/or purchase by us, of the LYONs. You should read this
prospectus supplement in conjunction with the prospectus, and this
prospectus supplement is qualified by reference to the prospectus, except
to the extent that the information in this prospectus supplement supersedes
the information contained in the prospectus. Capitalized terms used in this
prospectus supplement and not otherwise defined herein have the meanings
specified in the prospectus.

          The following information represents updated information
regarding selling securityholders listed in the selling securityholders
table contained on page 44 of the prospectus.




                                                    AGGREGATE PRINCIPAL      PERCENTAGE OF       NUMBER OF      PERCENTAGE OF
                                                   AMOUNT AT MATURITY OF         LYONS         COMMON SHARES    COMMON SHARES
                     NAME                            LYONS THAT MAY BE        OUTSTANDING       THAT MAY BE    OUTSTANDING(3)
- -----------------------------------------------           SOLD(1)             -----------         SOLD(2)      --------------
                                                          -------                                 -------
                                                                                                          
Merrill, Lynch, Pierce, Fenner and Smith Inc.        $   55,050,000              13.27%           243,838             *

- ---------------------

*    Less than one percent (1%).


(1)  Amounts indicated may be in excess of the total amount registered due
     to sales or transfers exempt from the registration requirements of the
     Securities Act since the date upon which the selling securityholders
     provided to us the information regarding their LYONs.

(2)  Assumes conversion of all of the holder's LYONs at a conversion rate
     of 4.4294 common shares per $1,000 principal amount at maturity of the
     LYONs. This conversion rate is subject to adjustment, however, as
     described under "Description of the LYONs--Conversion Rights." As a
     result, the number of common shares issuable upon conversion of the
     LYONs may increase or decrease in the future. Does not include common
     shares that may be issued by us upon purchase of LYONs by us at the
     option of the holder.

(3)  Calculated based on Rule 13d-3(d)(i) of the Exchange Act, using
     41,286,974 common shares outstanding as of September 30, 2002. In
     calculating this amount for each holder, we treated as outstanding the
     number of common shares issuable upon conversion of all of that
     holder's LYONs, but we did not assume conversion of any other holder's
     LYONs. Does not include common shares that may be issued by us upon
     purchase of LYONs by us at the option of the holder.




Investing in the LYONs involves risks that are described in the "Risk
Factors" section beginning on page 11 of the prospectus.

Neither the Securities and Exchange Commission, any state securities
commission nor any other regulatory body has approved or disapproved of
these securities or determined if this prospectus is truthful or complete.
Any representation to the contrary is a criminal offense.


(TM)TRADEMARK OF MERRILL LYNCH & CO., INC.

         The date of this prospectus supplement is October 9, 2002