At Southern Car Parts, we've got you covered when it comes to getting the best performance possible out of your C4 Corvette! Our C4 1985 C4 Corvette Heater Control Valve Without Nipple provides correct coolant flow for optimum cooling and heater operation. It's not always easy to find a quality reproduction C4 Corvette part. But you can rest easy knowing that our reproduction heater control valve is accurate and correct.