MaxPower’s 331528B includes 1 mulching blade for many 21 in. cut MTD, Cub Cadet, Troy-Bilt and Craftsman mowers. This blade replaces OEM #s CC-742-0741, 742-0741, 742-0741A, 942-0741, 942-0741A and Craftsman OEM # CMXGZAM100067. It measures 21 in. L and 2-1/4 in. W with a bow tie center hole design. To ensure proper fit, please verify the OEM # of the blade you are replacing matches the OEM # listed in this description. MaxPower blades are proudly manufactured in the USA to meet or exceed OEM specification.