Genuine OEM Audi Wheel Brake Cylinder, part number 1EA611053C. This critical component in drum brake systems converts hydraulic pressure from the master cylinder into mechanical force, pushing the brake shoes against the drum to create friction and slow the vehicle. It is located within the drum brake assembly. Manufactured to precise tolerances, a genuine OEM wheel brake cylinder ensures reliable hydraulic sealing and consistent braking force, crucial for effective and safe vehicle deceleration.