Genuine OEM Volkswagen Engine Coolant Hose, part number 03N121030B. This hose is a vital part of the engine cooling system, responsible for transporting coolant to regulate engine temperature and prevent overheating. It is positioned within the engine bay, connecting various cooling components. Weighing 0.0332 kg, this hose is constructed from durable materials resistant to heat and coolant chemicals. A genuine OEM hose ensures precise routing, correct diameter, and material integrity for a leak-free and efficient cooling system.