Genuine OEM Audi Tandem Brake Master Cylinder, part number 6R2611019C. This essential component converts the mechanical force from the brake pedal into hydraulic pressure, which is then transmitted to the calipers to activate the brakes. It is specifically designed for Right-Hand Drive (RHD) vehicle configurations. Weighing 0.631 kg and measuring approximately 18 cm in length, this master cylinder is built for precise operation. Installing a genuine OEM master cylinder ensures correct bore tolerances, seal integrity, and hydraulic pressure distribution, which are critical for responsive and safe braking performance.