The Ratioparts T19423 blade hub is a high-quality aftermarket replacement component designed for various Husqvarna, Jonsered, and McCulloch ride-on mowers. This essential part ensures the secure mounting and proper rotation of the mower blade, contributing to effective cutting performance. Key technical specifications include a total height of 133 mm, an outer diameter of 190 mm, and a shaft bore diameter of 25.4 mm. It also features a mounting hole center distance of 65 mm and weighs 0.85 kg. This Ratioparts blade hub is engineered to directly replace OEM part numbers such as 19423, 506950301, 53219423, and 5321942301, offering a reliable solution for maintenance and repair.