The MTD 7420507A high-lift mower blade is a genuine OEM replacement part designed for a 38-inch cutting deck. Measuring 467 mm (18.375 inches) in length, 63.5 mm (2.5 inches) in width, and 3.8 mm (0.15 inches) in thickness, this blade features a 6-point star center hole for secure mounting. It is engineered to provide superior lift for a clean, even cut and efficient bagging or discharge. This blade replaces MTD part numbers 7420507, 9420507, and 9420507A, ensuring compatibility with various MTD, Gutbrod, Cub Cadet, Troy-Bilt, and Craftsman lawn and garden equipment.