BMW X3/X4 Coolant Tank Overflow Hose / Line 5A4E4B5

This genuine OEM Coolant Tank Overflow Hose/Line (Part Number: 17129894755) serves a critical function in your BMW's cooling system, ensuring excess coolant is effectively routed back to the tank, thus maintaining optimal engine temperature. Primarily compatible with BMW X3 models from 2020 to 2024 and X4 models from 2022 to 2024, this part plays a key role in preventing overheating and coolant leaks, often resolving issues related to worn or damaged hoses. It is essential for the proper functioning of the coolant system, directly impacting engine performance and longevity. Sourced from salvage vehicles, this authentic part guarantees a factory-original fit and reliability.