The John Deere R93308 is a genuine OEM intake valve designed for optimal engine performance and durability. This valve is compatible with John Deere 4039, 4045, 6059, and 6068 series engines, found in a wide range of agricultural and construction machinery including 6000 and 7000 series tractors, 9000 series combines, and various loaders and excavators. With a length of 95 mm, head diameter of 51 mm, and stem diameter of 10 mm, this critical engine component ensures precise air intake for efficient combustion. It replaces part number RE509536.