The Case IH 3156625R91 is a genuine OEM gasket designed for various International Harvester agricultural machinery. This essential component ensures a proper seal in critical engine or transmission applications, preventing leaks and maintaining optimal performance. It is compatible with a wide range of IH tractor models including 1066, 1086, 1466, 1486, 1566, 1586, 3388, 3588, 3788, 4166, 4186, 4366, 4386, 6388, 6588, 6788, 7288, 7488, 986, 4100, 4156, 4300, 4500, 4568, 4586, 4786, 4994, 7388, 7588, and combine models such as 1440, 1460, 1470, 1480, 1640, 1660, 1670, 1680. Trust in OEM quality for reliable sealing and durability.