The MTD 7530484 Blade Hub Kit is an authentic OEM replacement part designed for various MTD brands, including Cub Cadet, Troy-Bilt, Yard-Man, and Yard Machines. This essential kit includes the blade hub, washer, and bolt, providing all necessary components to securely mount the blade to the engine crankshaft. Weighing approximately 0.39 kg, this kit ensures proper blade rotation and safe operation of your lawn mower. Always refer to your equipment's owner's manual for specific installation instructions and compatibility details.