Genuine OEM Audi Engine Coolant Hose, part number 079121055AG. This hose is responsible for circulating engine coolant to and from various engine components, playing a critical role in maintaining optimal operating temperatures. Positioned on the left side, its curved design ensures proper routing within the engine bay. Weighing approximately 0.03 kg, this rubber hose is engineered for resistance to heat and pressure. Choosing a genuine OEM hose guarantees correct routing geometry and material composition, preventing leaks and ensuring efficient engine cooling.