Genuine OEM Volkswagen Rear Brake Disc, part number 5QN615601A. This critical braking component provides a smooth, durable surface against which brake pads apply friction, converting kinetic energy into heat to slow the vehicle. It is installed as part of the rear braking system. Weighing 4.374 kg, this brake disc is manufactured from high-quality cast iron for optimal heat dissipation and wear resistance. Genuine OEM brake discs ensure precise metallurgy, dimensional accuracy, and balanced rotation, critical for consistent braking performance and longevity.