WHT 009 581 · Collar nut Audi genuine (OEM) part number WHT 009 581, Collar nut. Fitted on (3)COLLAR NUT — pos 4 (KAT428.BIN)COLLAR NUT — pos (4) (KAT896.BIN)COLLAR NUT — pos 4 (KAT896.BIN) Open the interactive exploded diagram →