Genuine OEM Porsche Coolant Balancing Tank, part number 99110605705. This component is essential for maintaining proper coolant levels and pressure within the engine's cooling system. It is typically located in the engine bay, connected to the radiator and coolant hoses. Constructed from robust plastic, it ensures reliable operation. Genuine OEM parts are manufactured to exact specifications, guaranteeing precise fitment and optimal performance for your vehicle's cooling system.