Oregon 98-005, BLADE MTD 21-15/16IN MULCHER 742-0722 22" cut, mulcher, used on models with splined shaft, models 050, 060, 070, 080, 200, 500- 1993 & after Also Replaces: MTD: 742-0522, 7420522, 742-0572, 7420572, 742-0622, 7420622, 742-0722, 7420722, 942-0522, 9420522, 942-0622, 9420622, 942-0722, 9420722 Product Code:98005