The Genuine BMW Inner Weatherstrip Rear Left Door is a high-quality replacement part for the rear left door of a BMW vehicle. This weatherstrip is designed to provide a tight seal and protect the interior of the car from outside elements such as rain, wind, and debris. It is made from durable materials and is an authentic BMW product, ensuring a perfect fit and reliable performance. This weatherstrip is specifically designed for the rear left door and is part number 51227034307. It is an essential component for maintaining the integrity of the door and ensuring a comfortable and safe driving experience.