The Genuine BMW Engine Coolant Overflow Hose - 17128678495 is a high-quality replacement part for BMW vehicles. This hose is designed to carry excess engine coolant from the radiator to the overflow tank, preventing overheating and potential damage to the engine. It is made from durable materials and is an exact fit for specific BMW models. This hose is an essential component of the cooling system and ensures proper circulation of coolant to maintain the engine's temperature. It is a genuine BMW product, ensuring reliability and longevity.