This product is a genuine Porsche Turbocharger Coolant Line O-Ring with the part number 99970767040. It is used in the cooling system of a Porsche Turbocharger and is designed to provide a secure seal between the coolant line and the turbocharger. This O-Ring is made from high-quality materials and is manufactured to the exact specifications of Porsche, ensuring a perfect fit and reliable performance. It is an essential component for maintaining the proper functioning of the turbocharger and preventing any coolant leaks.