Upper replacement blade replaces Honda 72531-VE2-010, 72531-VE2-020, 72531-VH7-000. 15-6430. Fits some Honda 21" Walkbehind HRB215, HRM215, HRS216, HRT216, HRX217. Used with our HO6431 lower blade on some decks. 15-6430. Be sure to match the part number from the owners manual for the part you are replacing with the OEM number(s) listed.