The John Deere RE582551 is a genuine OEM deaeration tank assembly designed for optimal performance and durability in a wide range of John Deere agricultural and construction machinery. This essential component helps to remove air from the cooling system, ensuring efficient engine operation and preventing cavitation. It is compatible with numerous John Deere models, including 8R/8RT series tractors, 8000 series forage harvesters, R4000 series sprayers, and various construction equipment like excavators, wheel loaders, and motor graders.