1、OE Number: The referencing OE number of this radiator coolant hose are 2115010382, 211‑501‑03‑82, 2115010482, molded and designed depend on the original data, and maintaining the original car model. 2、Fitment: The water tank connection hose is a replacement for Benz E‑Class W211 E320 2003 to 2005, please check the model and year of manufacturing before ordering to confirm compatibility. 3、Premium Materials: Manufactured from premium materials, the radiator coolant hose is resistant to high temperatures and pressure, ensuring a stable and reliable cooling system performance. 4、Reduced Leakage Risk: Precisely designed and made, this hose effectively prevents coolant leakage, reducing cooling system loss and maintenance costs. 5、Precise Connectivity: Equipped with precise connectors, this hose can perfectly match with the cooling system's storage tank, ensuring a tight connection and smooth coolant flow.