Genuine OEM Volkswagen Engine Coolant Pipe, part number 4M0819857C. This pipe is a vital component in the engine cooling system, responsible for transporting coolant between various components like the coolant reservoir and other hoses. It ensures efficient heat dissipation to maintain optimal engine operating temperatures. Weighing 0.119 kg, it is designed for precise fitment. Using a genuine OEM coolant pipe guarantees proper routing, material integrity, and resistance to thermal cycling and pressure, preventing leaks and cooling system failures.