Genuine OEM Audi Engine Coolant Pipe, part number 03H121065C. This pipe is a critical component in the engine cooling system, designed to efficiently carry coolant to cool the engine and maintain optimal operating temperatures. It is installed within the engine bay, connecting various cooling system components. Constructed from durable metal with a black finish, this pipe measures approximately 0.38 meters in length and weighs 0.5 kg. Choosing a genuine OEM coolant pipe ensures correct routing geometry, leak-free connections, and resistance to thermal cycling and corrosion, vital for the longevity and efficiency of the engine's cooling system.