Genuine OEM Mercedes-Benz Brake Caliper, part number A0004216581. This caliper houses the brake pistons that press the brake pads against the rotor to slow or stop the vehicle. It is mounted on the front left side of the vehicle's braking system. Constructed from durable cast iron for longevity and consistent performance. Genuine OEM calipers are precisely engineered to meet strict manufacturing tolerances, ensuring proper hydraulic function and braking effectiveness.