The Graf Water Pump and Thermostat Replacement Kit (E83) - 11517509985KT4 is a comprehensive kit designed to replace the water pump and thermostat in a vehicle. It includes all necessary components such as the water pump, thermostat, gaskets, and hardware for a complete and hassle-free installation. This kit is specifically designed for use in the E83 model of vehicles and is a direct replacement for the original parts. It is made by Graf, a trusted brand in automotive parts, ensuring high quality and reliable performance. This kit is an essential component for maintaining proper engine temperature and preventing overheating, making it a crucial part for the overall health and longevity of the vehicle.