Genuine OEM Volkswagen Engine Coolant Hose, part number 2H0121157AL. This hose is vital for the efficient circulation of coolant, playing a key role in regulating engine temperature. It connects various components within the engine's cooling circuit. Weighing 0.0793 kg, this hose is precisely molded to ensure a perfect fit and seal. Genuine OEM hoses are engineered to resist degradation from heat, pressure, and coolant chemicals, providing long-lasting performance.