The John Deere F3171R is a genuine OEM O-Ring designed to provide a secure and leak-proof seal in a wide range of John Deere machinery. Manufactured to precise specifications, this O-Ring has an inside diameter of 25.4 mm (1.000 in), an outside diameter of 30.18 mm (1.188 in), and a thickness of 2.39 mm (0.094 in). It is crucial for maintaining system integrity in hydraulic, fuel, or other fluid systems across numerous John Deere tractor, combine, and construction equipment models.