The Case-IH 3220176R1 is a genuine OEM O-ring designed for critical sealing applications in various Case-IH and New Holland agricultural and construction equipment. This high-quality O-ring features an inside diameter of 18.72 mm and a cross-section (thickness) of 1.78 mm, ensuring a reliable and leak-proof seal in hydraulic and fluid systems. It is a direct replacement for several older part numbers, maintaining system integrity and performance.