The NEW OEM Tesla Model 3 Front Door Outer Belt Assembly - Left Hand (Black) is a factory-original trim component designed to seal and protect the lower edge of the driver-side front door window. This outer belt molding helps prevent water, dirt, and debris from entering the door panel, ensuring smooth window operation and longevity. Manufactured with high-quality materials, this black-finished OEM part ensures seamless integration, durability, and a factory-grade appearance.