The Genuine BMW Carrier Outside Door Handle Rear Left is a replacement part for the exterior door handle on the rear left side of a BMW vehicle. It is made by BMW and is designed specifically for their vehicles. This carrier is responsible for holding the door handle in place and allowing it to function properly. It is made from high-quality materials and is an exact fit for the original part. This product is part number 51217191571 and is a genuine OEM part from BMW.