The MTD 61804125C Spindle Assembly is a genuine OEM replacement part designed for various MTD, Cub Cadet, and Troy-Bilt lawn mowers. This critical component supports the mower blade, allowing for smooth and efficient cutting. It ensures proper blade rotation and maintains the structural integrity of the cutting deck. This spindle assembly is engineered for durability and precise fitment, restoring optimal performance to your lawn equipment. It replaces previous part numbers such as 61804125, 61804125A, 61804125B, 91804125, 91804125A, 91804125B, and 91804125C.