The John Deere AL174688 is a genuine OEM check valve designed for various John Deere agricultural and construction machinery. This essential hydraulic component ensures unidirectional fluid flow, preventing backflow in hydraulic systems. It is compatible with a wide range of John Deere equipment, including 5020, 6020, 6030, 7020, 7030, 7R, 8020, 8030, 8R, 9020, 9030, 9R, 9RT, 9RX Series Tractors, R4023, R4030, R4038, R4045 Sprayers, S650, S660, S670, S680, S690, S760, S770, S780, S790 Combines, and 8100-9900 Series Forage Harvesters. Weighing 0.12 kg with dimensions of 95mm length, 51mm width, and 51mm height, this valve is built to John Deere's stringent quality standards for reliable performance and durability.