<b><br />Motorcraft Rt1213 Thermostat Asy:</b> <br /> <ul> <li>Long-term usability with heavy-duty construction</li> <li>Channel constructed for strength</li> <li>Made with a stainless steel or brass bridge and spring-style frame for smooth operation and compression</li> <li>Pistons are constructed with stainless steel and tapered ends with flexible elastomeric boots</li> <li>Nozzle is streamlined for maximum flow of coolant</li> <li>Mounting flange is specially designed for precise placement in the housing</li> <li>Car spare part has a Rulon seal</li> <li>Made with an expansive wax compound</li> </ul>