OEM Number: MJA4440BA. Expansion Tank Cap Coolant Reservoir Bottle for Jaguar X-Type XJ8 XK8 XJR XKR. Quantity: 1pc. Note: Never remove the cap from a hot engine, the cap may 'fly off' on releasing and hot coolant will burn your hand, if you must remove the cap, cover the cap with a suitable cloth, screw the cap slowly to release the pressure, then carefully remove the cap, do not put finger in hot coolant.
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