X0201 42003-12-01 0000029644 DONALDSON CO INC DCI 0001241113 WIEHOFF JOHN 1400 WEST 94TH STREET BLOOMINGTON MN 55431 1000Common Stock2003-12-014A047159.37D571DStock Option (right to buy)59.372003-12-014A036000A2003-12-012013-12-01Common Stock36003600DNorman C. Linnell, Attorney-in-fact for John P. Wiehoff2003-12-11