Genuine OEM Volkswagen Coolant Pipe, part number 038121071S. This pipe is a component of the engine's cooling system, facilitating the flow of coolant between different parts of the engine and potentially to the heater core. It plays a vital role in maintaining the engine's operating temperature. Positioned within the engine bay, connecting various cooling system parts. Made from durable metal or high-temperature plastic designed to resist corrosion and heat.