The Case-IH 417870A2 is a genuine OEM O-ring, a critical sealing component designed for various Case-IH Farmall series agricultural tractors. This O-ring is engineered to provide a precise fit and reliable seal within hydraulic or fluid systems. It features an inner diameter of 12.7 mm, an outer diameter of 19.05 mm, and a thickness of 3.175 mm. This part is compatible with specific Farmall A, C, and U models, ensuring optimal performance and preventing leaks in demanding operational environments.