180-Degree Thermostat

The Mopar 2128994 is a 180-degree brass thermostat designed to regulate engine cooling efficiency in 8-cylinder vehicles. This genuine original equipment (OE) component is built to meet strict factory specifications for reliable operation and temperature control. It serves as a direct replacement part and maintains the performance integrity expected from original Mopar equipment. This thermostat is compatible with a wide range of vehicles manufactured from 1956 through 1968, including all 8-cylinder Chrysler, Dodge, Dodge Truck, Imperial, Plymouth, and DeSoto models. It is frequently sourced as a New Old Stock (NOS) component and has superseded several previous part numbers, including 1485678, 1674602, 1674615, 1735011, 2808631, and 3514175. Installation requires standard cooling system service procedures. As a discontinued original factory part, it is a preferred choice for owners looking to maintain period-correct components in their classic Mopar vehicles. The part is backed by the Mopar factory warranty.