The Case IH 87556243 is a genuine OEM pulley designed for a wide range of Case IH agricultural and construction equipment. This robust pulley features an outer diameter of 170 mm, an inner bore diameter of 20 mm, and a width of 40 mm, ensuring precise fit and reliable performance. It is a critical component for various systems in models such as Magnum, Steiger, Quadtrac, Puma, Maxxum, Farmall A series tractors, Axial-Flow combines, Patriot sprayers, cotton pickers, and windrowers, contributing to optimal machine operation and longevity.