Simpson Kelvinator Fridge Thermostat CS390A, C350T, C500V, C340SD, C341SDSuits older Westinghouse, Kelvinator and Frigidaire two door cyclic defrost fridge freezers and single door cyclic defrost refrigerators without a freezer compartment where the thermostat is mounted with the light on the side wall of the fridge compartment. This thermostat is supplied bare, without knob or mounting hardware. The knob shaft is a fitting with a large and a small lug opposite each other. Electrolux: C340SD, C341SD, C390P, CS390T,