The Genuine Porsche Engine Coolant Pipe O-Ring (911 Boxster Cayman) - 9A700828100 is a replacement part for Porsche vehicles. This O-ring is specifically designed for the engine coolant pipe and is compatible with the 911, Boxster, and Cayman models. It is made of high-quality materials to ensure a secure and leak-free connection between the coolant pipe and the engine. This O-ring is an essential component for maintaining proper engine cooling and should be replaced if it shows signs of wear or damage. It is an authentic Porsche product, ensuring a perfect fit and reliable performance.