Genuine OEM Audi Coolant Hose Assembly, part number 4M0122055BS. This complex assembly is designed to transport coolant efficiently between various engine components, playing a vital role in maintaining optimal engine operating temperatures. Constructed from high-quality, heat-resistant rubber and durable plastic connectors, it ensures a leak-free and reliable connection within the cooling system. Using a genuine OEM hose assembly guarantees precise routing, proper fitment, and resistance to thermal cycling and coolant chemicals, preventing premature failure.