Audi S4 Lower Radiator Coolant Hose / Line 8E0121055AD

Discover the authentic OEM Lower Radiator Coolant Hose (Part Number: 8E0121055AD), meticulously sourced from European salvage vehicles. This essential water hose assembly plays a critical role in your vehicle's cooling system by transferring coolant from the radiator to the engine and back, ensuring optimal engine temperatures. Commonly referred to as a water hose, this part is paramount for preventing overheating and maintaining performance. Compatible with various Audi models, including the 2005-2009 S4 and 2008 RS4, each fitted with a 4.2L V8 engine, this hose fits seamlessly in the lower radiator assembly. Its integrity is vital for a system that relies on efficient coolant flow. Replacing worn or damaged hoses with this genuine part will resolve issues like leaks and overheating, enhancing your vehicle's functionality. Other compatible part numbers include N90770201 and 8E0121251AJ. Trust this factory-original component to restore your Audi's performance.