The John Deere ER5801483583 is a high-quality rear crankshaft seal designed for optimal engine performance and oil retention. This genuine OEM part is also cross-referenced as IVECO/CNH 5801483583 and is specifically engineered for IVECO FPT NEF 45 and NEF 67 engines. It ensures a precise fit with an inner diameter of 95 mm, an outer diameter of 115 mm, and a thickness of 12 mm. This seal is crucial for preventing oil leaks from the rear of the crankshaft, maintaining engine integrity in compatible John Deere R-Series tractors and other machinery utilizing these IVECO FPT power units.