Replacement Number : Elevate your BMW's cooling system with the Autostar Germany Expansion Tank designed for BMW E38, E39, E20, and E10 models with part number 17111436381. Here's why this expansion tank is a superior choice for your vehicle: Precision Fit: Tailored specifically for BMW E38, E39, E20, and E10 models, the Autostar Germany Expansion Tank ensures a precise fit, promoting optimal functionality. Premium Quality: Crafted with high-quality materials, this expansion tank is built to withstand temperature variations and resist corrosion, ensuring longevity and reliability. Efficient Cooling: The Autostar Germany Expansion Tank plays a crucial role in maintaining the proper coolant levels, contributing to efficient engine cooling and preventing overheating. Easy Installation: Designed for hassle-free installation, this expansion tank is user-friendly, saving you time and effort during the replacement process. Upgrade your BMW's cooling system with confidence by choosing the Autostar Germany Expansion Tank (part number 17111436381) for a reliable and durable solution that enhances your vehicle's performance.