Genuine OEM Volkswagen Coolant Hose, part number 3Q0121109A. This hose carries coolant between engine components, vital for maintaining optimal engine temperature and preventing overheating. It is positioned within the engine cooling system, connecting components like the turbocharger and radiator. This hose measures 0.34m in length. Choosing a genuine OEM hose ensures correct routing geometry and material composition to withstand high temperatures and pressures of the cooling system, preventing leaks.