Arnold Corp 490-100-M084 MTD Mulching Mower Blade, 21-Inch Fits 21" mowers, 1995 and after For Troy-Bilt, MTD, Yard-Man, Yard Machines, Huskee and Bolens mowers 3-in-1 blade mulches, bags and side discharges Star center hole Replaces # 942-0741, 942-0741A, 742-0741, 742-0741A