<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM WESTINGHOUSE
AIR BRAKE COMPANY'S CONDENSED CONSOLIDATED FINANCIAL STATEMENTS AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                    1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                           6,487
<SECURITIES>                                         0
<RECEIVABLES>                                  127,964
<ALLOWANCES>                                         0
<INVENTORY>                                    111,444
<CURRENT-ASSETS>                               268,505
<PP&E>                                         229,987
<DEPRECIATION>                                  99,502
<TOTAL-ASSETS>                                 606,442
<CURRENT-LIABILITIES>                          158,112
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           474
<OTHER-SE>                                     (2,968)
<TOTAL-LIABILITY-AND-EQUITY>                   606,442
<SALES>                                        385,185
<TOTAL-REVENUES>                               385,185
<CGS>                                          260,308
<TOTAL-COSTS>                                  260,308
<OTHER-EXPENSES>                                65,733
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              17,864
<INCOME-PRETAX>                                 40,800
<INCOME-TAX>                                    15,198
<INCOME-CONTINUING>                             25,602
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                  (469)
<CHANGES>                                            0
<NET-INCOME>                                    25,133
<EPS-BASIC>                                        .99
<EPS-DILUTED>                                      .97