This is a genuine OEM Renault part, number 7700014312, identified as a nut. It is designed for use in a range of Renault agricultural tractors, including models such as the Ares, Arion, Atles, Celtis, Ceres, Cergos, Ergos, Nectra, Pales, and Temis series. This part is also compatible with certain Claas tractor models, specifically the Ares, Arion, Atles, Celtis, Ceres, Cergos, Ergos, Nectra, Pales, and Temis series. Ensure proper fitment by verifying compatibility with your specific machine model.