Genuine OEM Mazda Gasket, part number GHK1513J8A. This gasket seals the left side trunk lamp assembly. It is crucial for preventing water and dust from entering the trunk area through the lamp housing, protecting electrical components and the trunk interior from moisture damage. This part is located on the left side of the trunk lid, surrounding the lamp assembly. Genuine OEM parts ensure precise fitment and material integrity for long-lasting protection against the elements.