1) Maserati part 330424 and 000291739 are not special. It's just a differently labeled thermostat off a Grand Cherokee 3.6L Flex fuel engine. The OEM part number is MAHLE TI 236 95. I ordered the Mahle part from Amazon for just $38. It's the exact same part but with the manufacturer specific part number and Pentastar logo scratched off. More @Wikipedia
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