The Case IH 138963 Ring is a genuine OEM replacement part designed for various Case IH agricultural and industrial machinery. This ring ensures proper function and fitment in compatible tractor models including the 485, 495, 585, 595, 685, 695, 785, 795, 885, 895, 995, 3220, 3230, 4210, 4230, and 4240 series. It is also suitable for 510, 520, 530, 540 loaders, 1800, 1822, 1844 cotton pickers, 248, 258, 268, 278 industrial tractors, and 8820, 8830, 8840, 8850 windrowers. Additionally, it fits various Case IH engine models such as D155, D179, D206, D239, D246, D268, D310, D358, DT239, DT268, DT358, DT402, D436, D466, DT436, DT466, DTA360, and DTA466.