Genuine OEM Volkswagen Brake Caliper Housing, part number 4M0615425. This housing is a critical part of the brake caliper assembly, providing the structure that holds the brake pads and piston. It is typically mounted to the suspension knuckle and works in conjunction with the brake rotor to slow and stop the vehicle. This part is made from cast iron or aluminum for strength and heat dissipation. Genuine OEM parts ensure precise fitment and material integrity for safe and effective braking.