1 EXHIBIT 12.3 PACCAR INC AND SUBSIDIARIES --------------------------- COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES ------------------------------------------------- (Thousands of Dollars) Year Ended December 31 ---------------------------------------------------- 1993 1992 1991 1990 1989 -------- -------- -------- -------- -------- FIXED CHARGES Interest expense PACCAR Inc and Subsidiaries(1) $ 64,000 $ 71,912 $ 94,264 $118,680 $117,519 Portion of rentals deemed interest 6,001 6,870 6,785 6,447 5,178 -------- -------- -------- -------- -------- TOTAL FIXED CHARGES $ 70,001 $ 78,782 $101,049 $125,127 $122,697 ======== ======== ======== ======== ======== EARNINGS Income before taxes and cumulative effect of change in accounting method-PACCAR Inc and Subsidiaries(2)(3) $219,757 $ 91,613 $ 48,344 $ 94,156 $363,359 FIXED CHARGES 70,001 78,782 101,049 125,127 122,697 -------- -------- -------- -------- -------- EARNINGS AS DEFINED $289,758 $170,395 $149,393 $219,283 $486,056 ======== ======== ======== ======== ======== RATIO OF EARNINGS TO FIXED CHARGES 4.14x 2.16x 1.48x 1.75x 3.96x (1) Exclusive of interest paid to PACCAR. (2) PACCAR income in 1989 includes a $76.4 million before-tax gain from the sale of a division and a fleet of railcars. (3) Includes before-tax earnings of wholly owned subsidiaries and distributed income received from less than 50% owned subsidiaries. -31-