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Old 08-26-2020, 11:43 AM   #12
woodiewagon46
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Join Date: Jun 2012
Location: Long Island,NY
Posts: 1,555
Default Re: Sacrificial Anode

I needed to replace two thermostat housings over several years on a small block chevy. I purchased the radiator cap that uses a zinc anode and haven't replaced a housing since. The cap will need to be replaced soon as the zinc sacrificial anode is getting thin. No cooling issues at all. They work as far as I can see.
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