<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED STATEMENTS OF INCOME FOR THE SIX MONTHS ENDED JUNE 30, 2000 AND
1999, AND THE CONSOLIDATED BALANCE SHEETS, JUNE 30, 2000, AND DECEMBER 31, 1999,
OF PACCAR INC AND SUBSIDIARIES AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.

<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               JUN-30-2000
<CASH>                                         505,500
<SECURITIES>                                   468,400
<RECEIVABLES>                                5,540,600
<ALLOWANCES>                                         0
<INVENTORY>                                    347,300
<CURRENT-ASSETS>                                     0
<PP&E>                                         859,200
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                               8,382,900
<CURRENT-LIABILITIES>                                0
<BONDS>                                      1,948,500
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        78,500
<OTHER-SE>                                   2,148,600
<TOTAL-LIABILITY-AND-EQUITY>                 8,382,900
<SALES>                                      4,246,200
<TOTAL-REVENUES>                             4,472,200
<CGS>                                        3,656,500
<TOTAL-COSTS>                                3,797,200
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                17,300
<INTEREST-EXPENSE>                               6,800
<INCOME-PRETAX>                                447,100
<INCOME-TAX>                                   161,100
<INCOME-CONTINUING>                            286,000
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   286,000
<EPS-BASIC>                                       3.71
<EPS-DILUTED>                                     3.69