Maintain optimal window sealing, weather protection, and noise reduction with the NEW OEM Tesla Model Y Front Door Left-Hand Outer Belt Assembly, part number 1621166-70-C. This exterior belt molding sits along the outer edge of the front left-hand door window, forming a protective barrier that prevents water, dust, and debris from entering the door panel. Manufactured to Tesla’s strict OEM standards, this high-quality rubber and plastic assembly integrates seamlessly with the door and window system, ensuring smooth window operation and long-term durability. Additionally, it helps reduce wind noise, enhances aerodynamics, and protects the window glass from potential scratches or excessive wear.