The John Deere R44181 is a genuine OEM O-Ring designed to provide a reliable and leak-free seal in numerous John Deere agricultural, construction, and turf equipment hydraulic systems. With an inner diameter of 25.4 mm (1.000 in), an outer diameter of 31.75 mm (1.250 in), and a cross-section of 3.175 mm (0.125 in), this O-Ring is critical for maintaining system integrity and preventing fluid loss. It is widely used across a broad range of John Deere tractors, combines, loaders, and other machinery models, ensuring optimal performance and durability.