Genuine OEM Audi Engine Coolant Hose, part number 1K0121051N. This essential hose circulates coolant to regulate engine temperature, playing a critical role in preventing engine overheating and ensuring optimal operating conditions. It is positioned within the engine cooling system, connecting various components. Made from durable rubber, this hose has a curved shape and measures approximately 0.28m in length. Choosing a genuine OEM coolant hose ensures precise fitment, correct material specifications for heat and pressure resistance, and reliable performance to maintain the integrity of the cooling system.