The John Deere R76578 is a genuine OEM O-Ring designed to provide a reliable and leak-free seal in a wide range of John Deere agricultural, construction, and industrial machinery. This essential component is crucial for maintaining system integrity in hydraulic systems, engine components, and other critical applications. Manufactured to John Deere's stringent quality standards, it ensures optimal performance and durability. Key dimensions include an inside diameter of 69.44 mm, an outside diameter of 74.52 mm, and a cross-section of 2.54 mm.