This set of brake sealing rings is a gasket-type component that seals the hydraulic or mechanical interfaces within the brake system of the host tractor. The rings prevent fluid leakage and maintain system pressure between the brake piston and housing, ensuring consistent clamping force during braking. A worn or degraded sealing ring causes internal fluid bypass, leading to a soft pedal feel and reduced braking effectiveness. As an original AGCO component, the ring profile matches the housing groove dimensions and material hardness of the original assembly, so no adjustment or shimming is required during installation. Replace the rings as a complete set and clean the mating surfaces before reinstallation.