High quality water tank and water pipe OE 11537589949 is perfectly designed and compatible with BMW E70 X5 and E71 X6 models. Made of premium reinforced composite and high‑grade rubber materials, this cooling pipeline part delivers excellent high temperature resistance, pressure resistance and anti‑aging performance, adapting to long‑term high-load engine operation. Precision manufactured according to OEM standards, it features accurate interface size, tight connection and superior leakproof performance. It ensures smooth and stable coolant circulation, effectively dissipating engine heat and preventing overheating, boiling and other hidden troubles. This direct replacement part can well solve common problems such as pipe cracking, coolant leakage and sealing failure of old components. With stable structure, strong toughness and long service life, it provides reliable protection for vehicle cooling system. Cost-effective and easy to install, it is an ideal spare part for daily maintenance and repair of BMW E70 / E71.