The Case-IH 86623231 is a genuine OEM shim washer designed for precise adjustment and spacing of components in various Case-IH, New Holland, and Steyr agricultural and construction equipment. This essential part helps maintain proper clearances, reducing wear and ensuring optimal performance across a wide range of models including Maxxum, Puma, Farmall, Vestrum, Optum, Magnum, Steiger, Quadtrac, Patriot, and Titan series, as well as New Holland T6, T7, T8, T9, CR, CX, BigBaler, FR, Guardian, Speedrower, and Steyr Profi, Impuls CVT, Terrus CVT, Absolut CVT, Expert CVT, Multi, Kompakt series. It features an inner diameter of 40 mm, an outer diameter of 55 mm, and a thickness of 0.3 mm.