Genuine OEM Volkswagen Seal, part number 3D0945191B. This seal is designed to fit around the left tail light assembly, ensuring a watertight and dustproof seal. Its primary function is to prevent moisture, dirt, and other contaminants from entering the tail light housing, which could cause damage or affect performance. The seal is made from a durable rubber compound to withstand environmental exposure. Genuine OEM seals provide exact fitment and material integrity, crucial for maintaining the longevity and functionality of lighting components.