Genuine MTD 7420674637 lawn mower blade, precisely engineered for optimal cutting performance. This 21.20 inch (538.48 mm) long blade features a 2.25 inch (57.15 mm) width and a 5/8 inch (15.875 mm) center hole. Weighing 0.816 kg, it is designed for specific MTD models like 13A2775S000, ensuring a perfect fit and reliable operation. This OEM blade replaces multiple MTD part numbers including 7420674 and 9420674 series.