The John Deere RE532993 is a genuine OEM cylinder head bolt designed for securing the cylinder head on various John Deere engines, including 4.5L and 6.8L models. This critical engine component ensures proper sealing and compression. Measuring 151mm in length with an M12x1.75 thread, it is engineered for durability and precise fitment in a wide range of John Deere agricultural, construction, and industrial machinery, including tractors, combines, and power units.