The Fiat 300821 is a genuine tapered roller bearing designed for the front hub assemblies of a wide range of Fiat agricultural tractors. This high-quality bearing ensures smooth rotation and reliable performance, crucial for demanding farm operations. With precise dimensions of 45 mm inner diameter, 75 mm outer diameter, and 20 mm width, it provides an exact fit and optimal load distribution. It is an essential component for maintaining the integrity and functionality of the front axle system.