The John Deere AN400390 is a genuine OEM pressure compensator valve designed to maintain a consistent pressure of 80 PSI (approximately 551.6 kPa) within hydraulic systems. This critical component ensures optimal performance and reliability across a wide range of John Deere agricultural, construction, and forestry equipment, including numerous tractor, loader, excavator, and harvester models. Weighing approximately 0.091 kg, it is built to John Deere's exacting standards for durability and precise hydraulic control, ensuring seamless operation and system stability.