Genuine OEM Volkswagen Engine Coolant Hose, part number 7P0121101J. This hose is a vital component of the engine cooling system, responsible for circulating coolant between various engine components to maintain optimal operating temperatures. It is designed to withstand high temperatures and pressures within the cooling circuit. Weighing approximately 0.032 kg, this hose is constructed from durable, heat-resistant materials. Using a genuine OEM coolant hose ensures precise routing, proper sealing, and resistance to degradation from heat and coolant chemicals, preventing leaks and maintaining efficient engine cooling.