The Oregon 98053 is a high-quality, high lift lawn mower blade designed for MTD 21-inch walk-behind mowers manufactured in 1997 and later. This genuine Oregon blade measures 533.4 mm (21 inches) in length, 57.15 mm (2-1/4 inches) in width, and 3.81 mm (0.150 inches) in thickness, featuring a 15.875 mm (5/8 inch) center hole. It is engineered to provide superior cutting performance and efficient grass discharge, making it an ideal replacement for MTD OEM part numbers 742-0610, 742-0610A, 942-0610, and 942-0610A.