Genuine OEM Porsche Water hose, part number 99710632872. This hose is specifically designed to transport hot coolant from the engine to the heater core, providing warmth to the cabin. Constructed from durable EPDM/EPDM material, it is built to withstand high temperatures and pressures. Using a genuine OEM hose ensures correct diameter, length, and flexibility for seamless integration and reliable coolant flow.