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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


radiator cap with zinc anode

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G3GM :: G3 Tech :: Engine & Driveline

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radiator cap with zinc anode Empty radiator cap with zinc anode

Post by pila Wed Mar 13, 2013 3:00 pm

National Parts Depot has a radiator cap, with a sacrificial zinc anode attached to it. I just ordered another one ($14.95) for the El Camino project. I have had one in my Malibu for about 6 years, and it keeps the radiator nice & clean inside FYI. The part number is 952-16 if anyone is interested.
BILL

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radiator cap with zinc anode Empty Re: radiator cap with zinc anode

Post by 77mali Wed Mar 13, 2013 3:32 pm

Is the idea for inhibiting rust?

& lets hope they send you the right part this time LOL
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radiator cap with zinc anode Empty Re: radiator cap with zinc anode

Post by dragons_lair59 Thu Mar 14, 2013 10:10 am

77 yes it is and if i remember helps with scale deposits too
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Post by 77mali Thu Mar 14, 2013 2:56 pm

Thanks, I had a feeling as no one really talks about anodes & cathodes with corrosion being involved.

& Thanks for the part number Pila. Good stuff to know.

Here's a link
http://www.npdlink.com/store/products/gto_tempest_radiator_cap_16_lb-107199-10090.html
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radiator cap with zinc anode Empty Re: radiator cap with zinc anode

Post by pila Sat Mar 16, 2013 4:11 pm

OK, here's a pic of the cap. It's a 16 lb cap by the way. I'm likely gonna put one in my wife's Buick & my Chevy pickup also. It has a the spring-looking thing which extends the anode down into the radiator about 8 inches, into the coolant
radiator cap with zinc anode P1011285_zps2a19a8db

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radiator cap with zinc anode Empty Re: radiator cap with zinc anode

Post by pila Sat Mar 16, 2013 7:00 pm

Here's a pic of the package tab. It shows an aluminum water neck, with corrosion pits where the hose was clamped on.
I guess they are claiming that corrosive acids are removed with the anode...
Sorry it's not readable etc...
.radiator cap with zinc anode P1011284_zpsead5b3ea

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