Genuine OEM Volkswagen Brake Servo Seal, part number 12E612161. This crucial seal creates an airtight connection between the brake master cylinder and the brake booster (servo unit), maintaining the vacuum necessary for proper brake assist function. It prevents vacuum leaks that could compromise braking performance. Weighing only 0.006 kg, this seal is designed for precise fitment. Using a genuine OEM seal ensures the correct material properties and dimensions for a reliable, long-lasting seal, critical for brake system safety and efficiency.