Anyone got a lead on a Mopar heater core?


BoldlyGoing

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The latest in what appears to be a one by one replacement of the cooling system on this Jeep is that my heater core just puked all over the passenger floorboard.

I swapped this thing out about 2 yrs ago using One of the handful of options on Amazon.

This go-round I'd prefer to use MOPAR, but it appears to be discontinued.

I see a Crown and an Omix on Quadratec. Any other options to consider seeing as how this isn't exactly a quick job?
 

Irun

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Not a lead on a Mopar core, but here's the best read I've seen on this issue. @Latimera did some detective work and identified a replacement from Performance Radiator, like you said.

 
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BoldlyGoing

BoldlyGoing

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Not a lead on a Mopar core, but here's the best read I've seen on this issue. @Latimera did some detective work and identified a replacement from Performance Radiator, like you said.

Yeah, hopefully these guys have one since nothing is available any time soon.

It's kind of funny... I replaced a leaking radiator cap about 3 weeks ago. Then 2 weeks ago the radiator cracked after 250k miles, so I swapped that, now, here we are.
 
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TboneJeeper

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I tried to find a Mopar core for a few months, and although many parts distributors listed them as "in stock", they were not. Some told me maybe the end of the year they would have more, but who knows. I decided to try Performance Radiator, and it was oddly the cheapest option. I almost went with one from Brassworks, as it would likely last forever, but others have said the heat output is not nearly as good with those. Here is a good thread laying out the options: https://wranglertjforum.com/threads/02-06-heater-core-options.33206/#post-539036
 

Jnagy129

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Sep 14, 2020
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Columbus, Ohio
Just swapped a performance radiator brand heater core into my LJ and wanted to provide some info.

I first (ignorantly) bought a spectra brand heater core on Amazon because I was already doing the AC evaporator, so figured if I was doing one of them, I should do both. In hindsight, I probably should've tried to keep the Mopar core somehow.

Either way, I put the spectra heater core in and instantly noticed my heat not getting anywhere near as hot. So, I replaced the water pump, thermostat, and factory radiator. Again limited heat. I left the radiator cap off, hoping air was just in the system. After getting fed up, and reading the above threads, I ordered the performance radiator heater core. When it came, it was in a box branded as a generic Chinese brand - so I was under the impression it was identical to the Spectra brand core I took out. I was very hesitant to go through the all the work of replacing the core if it was in fact the same thing.

I did further research and discovered that some brands of heater cores weigh 1.8 pounds (crown and OCS) and other brands weigh 1.4 pounds (Spectra, omix-ada, and my current Performance Radiator brand). It is my assumption that the 1.8 models have the metal turbulators, while the 1.4 models have plastic turbulators.

Regardless, given that colder weather will soon be upon us in Ohio, and given the absence of other in stock brands, I decided to bite the bullet today and swap my Spectra Heater Core for the Performance Radiator Heater Core. After having replaced the core initially a few months ago, the process went much faster (but was still a pain the ass). Lo and behold, my heater is back to burning my feet. So I'm not sure if perhaps Performance Radiator is just buying a higher grade heater core from the Chinese factories, if the Spectra core was just broken, or something else, but despite appearing identical and weighing the same, the Performance Radiator core is a night and day difference..so if you find yourself in a similar situation, here's one vote for biting the bullet.