Replacement Numbers : 431819809, 431819809A The Autostar Germany Control Valve Heater (part number 0008305784) is designed specifically for use in Mercedes Benz W201 and W123 models. The control valve heater is responsible for regulating the flow of coolant to the heater core, which is essential for maintaining a comfortable temperature inside the vehicle. The Autostar Germany control valve heater is made from high-quality materials and is built to last, ensuring reliable performance and longevity. Installing a new control valve heater can help to prevent overheating and other issues caused by a malfunctioning heater core. Autostar Germany is a trusted brand in the automotive industry, known for producing high-quality parts and accessories. Whether you're a professional mechanic or a DIY enthusiast, you can trust Autostar Germany's control valve heater to deliver reliable performance and value. With its precise fit and OEM-quality construction, the Autostar Germany control valve heater is an ideal replacement option for your Mercedes Benz W201 or W123.