Genuine OEM Audi Rear Left Brake Caliper, part number 1K0615423M. This essential braking component applies hydraulic pressure to the brake pads, pressing them against the rotor to slow or stop the vehicle. It is specifically designed for the rear left wheel position. Weighing 1.803 kg, this caliper is constructed for durability and precise operation. Using a genuine OEM brake caliper ensures optimal braking performance, proper fitment, and long-term reliability for safety-critical systems.