Parts Geek - For 1960-1961 Plymouth Custom Thermostat 18321WXFF 3.7L 6 Cyl. Notes: Fail-Safe -- The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating.; Temperature 160F; Alternate Temperature Option.
