The Case IH 399814R5 is a genuine OEM gasket designed for a wide range of International Harvester and Case IH tractor models. This essential sealing component ensures proper fit and function, preventing leaks and maintaining optimal performance in agricultural machinery. It is compatible with models including 460, 560, 606, 656, 666, 686, 706, 756, 766, 806, 826, 856, 966, 1026, 1066, 1206, 1256, 1456, 1466, 1468, 1566, 1568, 2606, 2656, 2706, 2756, 2806, 2826, 2856, 4100, 4156, 4166, 4186, HYDRO 100, HYDRO 70, and HYDRO 86.