The Case IH 528760R3 arm is a genuine OEM replacement part designed for a wide range of International Harvester tractor models, including the 200, 230, 240, 250, 260, 270, 280, 300, 350, 400, 450, 460, 500, 560, 600, 650, and 660 series. This essential component ensures proper functionality and durability, maintaining the original equipment standards for your agricultural machinery. It directly supersedes part number 528760R2.