The Graf Water Pump and Thermostat Replacement Kit (part number 11517509985KT8) is a comprehensive kit designed to replace the water pump and thermostat in a vehicle's cooling system. This kit includes a high-quality water pump, thermostat, gasket, and all necessary hardware for installation. The water pump is responsible for circulating coolant through the engine to prevent overheating, while the thermostat regulates the flow of coolant to maintain an optimal engine temperature. This replacement kit is manufactured by Graf, a trusted brand known for producing reliable and durable automotive parts. It is compatible with a variety of vehicle makes and models, making it a versatile and convenient choice for any car owner in need of a water pump and thermostat replacement.