Thermostat Gasket 6 Cylinder (RH12900)
This is the gasket for the coolant thermostat housing. The part was originally EB3952 but now has been superseded by RH12900. 1945-1959 6 Cylinder Models
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This is the switch for the thermo timer cold start injector. It sits in the main thermostat housing.
1977 year models onward Shadow II, Silver Wraith II
Spirit, Spur, Mulsanne, Camargue, Corniche, Continental (from VIN# 20001 to 29290)