1 EXHIBIT 12.1 PACCAR Financial Corp. COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES PURSUANT TO SEC REPORTING REQUIREMENTS (Thousands of Dollars) Three Months Ended March 31 1994 1993 ------------------ - - - ------------ FIXED CHARGES Interest expense $12,981 $11,180 Portion of rentals deemed interest 56 50 ------- ------- TOTAL FIXED CHARGES $13,037 $11,230 ======= ======= EARNINGS Income before taxes $ 9,294 $ 7,114 Fixed charges 13,037 11,230 ------- ------- EARNINGS AS DEFINED $22,331 $18,344 ======= ======= RATIO OF EARNINGS TO FIXED CHARGES 1.71X 1.63X The method of computing the ratio of earnings to fixed charges shown above complies with SEC reporting requirements but differs from the method called for in the Support Agreement between the Company and PACCAR Inc. See Exhibit 12.2. -12-