Thermostat Housing Assembly Jaguar S-Type 4.2 V8 N/A (2002-05) & XJ 3.5 + 4.2 V8 N/A (2003-05) - AJ89485. Equivalent to Jaguar part numbers: AJ85824, AJ85886, AJ87364, AJ87947, AJ89485. The Thermostat in your Jaguar's cooling system is situated in housing that seals the system around the Thermostat.
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