<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED STATEMENTS OF INCOME FOR THE TWELVE MONTHS ENDED DECEMBER 31, 1997,
1996, AND 1995, AND FROM THE CONSOLIDATED BALANCE SHEETS AT DECEMBER 31, 1997
AND 1996 OF PACCAR INC AND SUBSIDIARIES AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                         337,900
<SECURITIES>                                   357,000
<RECEIVABLES>                                3,567,500
<ALLOWANCES>                                    73,300
<INVENTORY>                                    393,500
<CURRENT-ASSETS>                                     0
<PP&E>                                       1,294,600
<DEPRECIATION>                                 572,900
<TOTAL-ASSETS>                               5,599,400
<CURRENT-LIABILITIES>                                0
<BONDS>                                      1,334,300
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        77,800
<OTHER-SE>                                   1,420,000
<TOTAL-LIABILITY-AND-EQUITY>                 5,599,400
<SALES>                                      6,467,600
<TOTAL-REVENUES>                             6,763,700
<CGS>                                        5,549,300
<TOTAL-COSTS>                                5,700,800
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                11,400
<INTEREST-EXPENSE>                              17,600
<INCOME-PRETAX>                                534,700
<INCOME-TAX>                                   190,100
<INCOME-CONTINUING>                            344,600
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   344,600
<EPS-PRIMARY>                                     4.43
<EPS-DILUTED>                                     4.41