The Genuine Porsche Turbocharger Oil Line O-Ring - 99970761440 is a replacement part for the oil line of a Porsche turbocharger. It is a round rubber ring that is designed to create a tight seal between the oil line and the turbocharger. This O-ring is made with high-quality materials to ensure durability and proper functioning. It is an essential component of the turbocharger system and helps to prevent oil leaks and maintain proper oil pressure. This product is an authentic Porsche part and is specifically designed for use in Porsche vehicles.