The Genuine Porsche Door Mirror Base (part number 99173122012) is a high-quality replacement part for Porsche vehicles. This base is designed to securely hold the door mirror in place and provide a stable mounting point for the mirror. It is made from durable materials and is an exact match for the original part, ensuring a perfect fit and function. This door mirror base is an essential component for maintaining the appearance and functionality of your Porsche vehicle.