This FEBI BILSTEIN coolant flange, part number 170181, is engineered for precise fitment and optimal performance in your vehicle's cooling system. It plays a crucial role in maintaining your engine's operating temperature by securely housing the thermostat and facilitating the flow of coolant. A properly functioning flange is essential to prevent overheating and ensure the longevity of your engine. Crafted from durable materials, this flange is designed to withstand the demanding conditions within the engine bay, resisting corrosion and temperature fluctuations. Trust FEBI BILSTEIN for dependable cooling system components.