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The Cometic AFM thermostat gasket for Jaguar 4.2L XJ6 Series I (1965–1967) pairs chemically blown nitrile rubber to an aluminum core for a durable seal. AFM material offers about 85% recovery and maintains torque retention while resisting temperatures above 205°F. It matches elevated engine requirements and does not require sealants or re-torquing, making it a practical replacement gasket for the specified Jaguar applications.
Cometic Jaguar 4.2L XJ6 Series-1 .060in AFM Thermostat Gasket - 1965-1967
