The John Deere RE56684 is a genuine OEM fuel return line designed for various John Deere agricultural machinery. This essential component ensures proper fuel system operation by returning excess fuel from the engine back to the tank. It is compatible with a wide range of John Deere 6000, 7000, 8000, and 9000 series tractors, including D, M, R, RT, and RX models, as well as S-series combines. Constructed to John Deere's rigorous standards, this fuel line provides reliable performance and a precise fit, maintaining the integrity of your equipment's fuel system.