Heater core: old vs new

Tooonz

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May 18, 2024
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Central Mass
Something tells me I’m going to be disappointed.

Heater core went , I ordered a new one from NAPA . Pulled it this weekend. And found this copper one. I don’t think that was OEM but it looks much larger than the replacement. Will I be disappointed with the heat? I had good heat last winter.
IMG_9916.jpeg
 
Something tells me I’m going to be disappointed.

Heater core went , I ordered a new one from NAPA . Pulled it this weekend. And found this copper one. I don’t think that was OEM but it looks much larger than the replacement. Will I be disappointed with the heat? I had good heat last winter.View attachment 646962

The early OEM were copper and brass. The only thing I would change on the new one is to have it made with a thicker core. The rest looks pretty good.
 
Yeah, definitely give a report on the heater temps after the install. At least it's all metal.

If you can find an actual radiator repair shop, the old one can be fixed. Probably won't be cheap though.
 
I do have heat, it does feel hot but it’s not cold here yet so I guess time will tell soon enough. I am going to assume the heater core was replaced before I did find it online It looks like a thicker core would be better for flow at least anyway and the price wasn’t that bad either. I bought the new one from Napa. Paid around the same price.
 
I do have heat, it does feel hot but it’s not cold here yet so I guess time will tell soon enough. I am going to assume the heater core was replaced before I did find it online It looks like a thicker core would be better for flow at least anyway and the price wasn’t that bad either. I bought the new one from Napa. Paid around the same price.

Put a thermometer in the vent and see if it meets the spec:

1759761110956.png
 
Something tells me I’m going to be disappointed.

Heater core went , I ordered a new one from NAPA . Pulled it this weekend. And found this copper one. I don’t think that was OEM but it looks much larger than the replacement. Will I be disappointed with the heat? I had good heat last winter.View attachment 646962

If you can find a shop,take the old one and get it fixed?anxious to hear back from the brassworx guy.
 
Last edited:
Mid winter update.
The NAPA heater core is working just fine, however from last winter to this winter there is a huge difference in the amount of heat the NAPA heater core produces vs the previous one. If I had known what I had originally I would certainly go with the thicker core for sure. I may even do the job again just to correct the issue. that should speak volumes.
 
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