The John Deere RE509291 is a genuine OEM cylinder head gasket designed for optimal sealing and performance in John Deere agricultural and construction machinery. This critical component ensures a tight seal between the cylinder head and engine block, preventing leaks and maintaining proper engine compression. It is compatible with John Deere 6068, 6090, and 6135 series engines, found in a wide range of John Deere tractors, combines, cotton pickers, forage harvesters, graders, loaders, sprayers, and windrowers. Measuring 680 mm in length, 250 mm in width, and 2 mm in height, and weighing 0.80 kg, this gasket is engineered to meet precise specifications for durability and reliability.