The Graf Water Pump and Thermostat Replacement Kit - 11517509985KT3 is a comprehensive kit designed to replace the water pump and thermostat in a vehicle's engine. This kit includes a high-quality water pump, thermostat, gasket, and other necessary components for a complete replacement. The water pump is responsible for circulating coolant throughout the engine to regulate its temperature, while the thermostat helps to control the flow of coolant. This kit is specifically designed to fit and function like the original equipment, ensuring optimal performance and durability. It is a reliable and cost-effective solution for maintaining the proper functioning of a vehicle's cooling system.