Features: Quality materials: Made from quality materials with durability and stability to provide a long service life. Improve engine efficiency: can control and adjust the temperature of the coolant to ensure that the engine operates within the appropriate temperature range, improve the efficiency and life of the engine. Accurate temperature control: It can accurately monitor and adjust the temperature of the coolant to ensure that the engine operates at the operating temperature. Reliable: Made from quality materials, it excellent heat and corrosion resistance and can operate stably in harsh working environments for a long time. Easy installation: The coolant thermostat meets the specifications of original car part and is easy installation without complicated modification or adjustment. Specifications: Material: Plastic Part Number: 11518601366 11518623576 Applicable Model: for F39 F45 F46 F48 F55 F56 F57 F60 mini 220i B38 B48 Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Car Engine Coolant Thermostat