Genuine OEM Volkswagen Brake Caliper, part number 5QM615425. This brake caliper is a vital part of the vehicle's braking system, housing the brake pads and pistons. When the brakes are applied, hydraulic pressure forces the pistons to clamp the brake pads against the brake disc, creating friction to slow or stop the vehicle. Typically constructed from durable cast iron or aluminum for strength and heat dissipation. Genuine OEM calipers are manufactured to exact tolerances, ensuring proper hydraulic function, consistent braking force, and reliable performance.