This brake caliper repair kit contains the seals, pistons, and hardware needed to restore the clamping force of the original caliper assembly. It sits between the master cylinder and the brake disc, converting hydraulic pressure into mechanical force at the friction pads. A leaking or worn caliper causes a spongy pedal feel and reduced braking torque, which can lead to uneven tire wear and longer stopping distances. The kit is manufactured to the same bore and seal-groove dimensions as the original assembly, so the piston moves freely without binding or bypassing fluid. On installation, clean the caliper bore thoroughly and lubricate the new seals with brake fluid before assembly.