This seal kit contains the elastomeric seals and wiper rings that prevent hydraulic fluid leakage at the rod and piston interfaces of a front loader. It sits at each cylinder gland and piston head, maintaining the pressure boundary between the hydraulic circuit and the external environment. A failing seal set causes external oil seepage past the rod wiper or internal bypass that reduces lift force and creates drift in the loader arms. The kit matches the original Claas seal profiles and groove dimensions, so the installed seals seat correctly in the cylinder bores without modification. On reinstallation, clean the seal grooves thoroughly and lubricate the new seals with clean hydraulic oil before assembly.