The John Deere DC16751 is a genuine OEM crankshaft designed for 4045TF275 and 4045DF275 engines. This critical engine component ensures smooth and reliable operation, providing the necessary rotational force for engine function. It is a direct replacement for part number RE503070 and fits a wide range of John Deere agricultural and utility tractors, including models in the 5000, 6000, and 7000 series. Manufactured to John Deere's stringent quality standards, this crankshaft guarantees durability and precise fitment for maintaining peak engine performance.