This genuine Zetor 72453773 bearing is a high-quality replacement component designed for various Zetor tractor models. With an inner diameter of 45mm, an outer diameter of 85mm, and a width of 19mm, this durable bearing ensures smooth operation and reliable performance. It is compatible with Zetor 3320, 3321, 3340, 3341, 4320, 4321, 4340, 4341, 5320, 5321, 5340, 5341, 6320, 6321, 6340, 6341, 7320, 7321, 7340, 7341, 8621, 8641, 9621, 9641, 10641, 11441, 11741, and 12441 series tractors.