The product is an OEM water coolant thermostat for BMW vehicles made between 2006-2013. It is a genuine BMW factory part from WAHLER, manufactured in Germany. The thermostat comes with a manufacturer warranty of 60 days and is designed to interchange with part numbers 11537544788, 7544788, 17127531581, 11537549476, 7536655, 11537536655, 7549476, and 7531581. This high-quality thermostat ensures proper cooling performance and reliability for your BMW vehicle.