Genuine OEM Audi Coolant Hose, part number 8K0121109AB. This hose is designed to transfer coolant efficiently between various engine components, playing a vital role in maintaining optimal engine operating temperatures. It features a quick-connect fitting for secure and easy installation. Weighing approximately 0.057 kg and measuring 0.12 m in length, this hose is constructed from durable rubber. Choosing a genuine OEM hose ensures precise fitment, proper sealing, and resistance to the high temperatures and pressures of the cooling system, which is essential for preventing leaks and ensuring long-term reliability.