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What thermostat is in a 500efi... 140 or 160?

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What thermostat is in a 500efi... 140 or 160?

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Old 07-06-2016 | 09:14 PM
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Default What thermostat is in a 500efi... 140 or 160?

I'm just curious if anyone knows what themostat is in a 500efi. I need to replace mine and a MERC dealer is telling me its supposed to have a 140 thermostat but I'm pretty sure the one I removed is a 160 themostat. Thanks
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Old 07-06-2016 | 09:48 PM
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Here, look at parts per your engine serial #: http://www.mercruiserparts.com/500-efi

The few ranges I looked up where 140*F, but there are way more than a few serial # ranges.
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Old 08-09-2016 | 10:21 PM
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Is yours heat exchanged or raw water cooled? Mine has 160 but I'm raw water cooled.
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Old 08-09-2016 | 10:22 PM
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I think you'll find the heat exchanged once are 140.
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