Genuine OEM Audi Coolant Pipe, part number 4E0265391. This pipe is a vital component of the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures and prevent overheating. It connects various components within the cooling circuit, ensuring a sealed pathway for fluid flow. Made from durable, heat-resistant rubber, this pipe measures approximately 22 cm long, 13 cm wide, and 6.3 cm high, weighing 0.23 kg. Using a genuine OEM coolant pipe ensures the precise routing geometry, correct material composition, and resistance to high temperatures and pressures, which are critical for preventing leaks and maintaining cooling system integrity.