The Case IH 9845118 is a genuine OEM self-locking nut designed for various Case IH JX series agricultural tractors. This critical component ensures secure and reliable fastening, particularly in rear axle assemblies, preventing loosening due to vibration and operational stresses. Manufactured to Case IH's stringent quality standards, it provides precise fitment and long-lasting performance for models including JX55, JX60, JX70, JX80, JX90, JX95, JX100U, JX1060C, JX1070C, JX1070N, JX1075C, JX1080U, JX1085C, JX1090U, JX1095C, and JX1100U.