Genuine VW/Audi Coolant Recovery Tank Hose - 1K0121447C - a high quality, OEM replacement hose for your Volkswagen or Audi vehicle. Designed to be a direct fit replacement, this hose is made from durable materials and is designed to withstand the harsh elements of the engine bay. This hose is an essential part of the engine cooling system and helps keep your engine running at its optimal temperature.