The John Deere AR63911 is a genuine OEM hydraulic cylinder designed for robust performance across a wide range of John Deere agricultural and construction equipment. This essential component ensures precise hydraulic operation, critical for steering, lifting, or other actuated functions in compatible machines. Weighing approximately 6.35 kg, this cylinder is built to John Deere's stringent quality standards, offering durability and direct fitment for models including 4030, 4230, 4430, 4630, 4040, 4240, 4440, 4640, 4840 tractors, 6600, 7700 combines, and various loaders, scrapers, and excavators.