Genuine OEM Volkswagen Engine Coolant Hose, part number 2Q0121049CJ. This multi-branch hose assembly is a critical component of the engine cooling system, responsible for circulating coolant between the engine, radiator, and other heat exchangers. It ensures efficient heat dissipation and maintains optimal engine operating temperatures. Weighing 1.27 kg, this genuine OEM hose is constructed from high-quality, heat-resistant materials with precise routing and connection points, preventing leaks and ensuring long-term reliability under demanding engine conditions.