OK give me sometime as right now due to me replacing my floor pans everything else is thrown in the building. There is a chance that I thrown it away but remember wanting to keep it just in case.

 

Well got looking for it and was unable to find so maybe I thrown it away (although I remeber wanting to keep since it was copper). I'll look again when I get al the interior from jeep out of building as right now everything is just thrown in but it may take up to a week as seems like I get 2 steps forward and 1 step back doing my pans.

 

Thanks for the effort! I know how it is; sometimes I'm conflicted too, should I throw this out or keep it? Later, did I throw it out....ummmm? Anyway, I hope you can find it.
If I have a custom one made from the older thicker copper one, it will serve as a mold for all other future 99 and 2000 Xj Jeepers to buy from "Brassworks" at a far cheaper price. They will have already made one. Good Luck! Thanks again!

 

I think this fits a 99, says they have them in stock?

https://www.carid.com/crown/hvac-hea...77&url=3926837

 

Wow thanks...I looked and looked, even at the site you provided-but I missed it somehow? I checked, it does fit a '99 and Yes they said they have 59 in stock? I ordered immediately! Thanks again!

 

I've heard that mixing metals like copper and brass with aluminum can cause the metals to corrode each other. At least that's what a mechanic told me at an MIG dealer.
I guess it depends on whether your A/C lines and your heater core pipes are the same metals, not too sure though that's what I heard. Correct me if I'm wrong by the way.

~Don't make an @$$ out of you and me~

 

That is part of why making sure your coolant is fresh is important.
Antifreeze has anti-corrosion properties. The newer style coolants are apparently LESS compatible with copper - so I would recommend just running regular antifreeze and changing it every 3 years.

Actually - the Valvoline MaxLife antifreeze says it is more corrosion resistant than standard coolants (something about silicates). Not a chemical engineer so this is just a rough guess...

 

I usually try and find a part number, and cross reference to find the lowest price.

Let us know how it turns out!

Would be vastly preferable to the Spectra style heater cores, plus the price is right!

I used some weather sealing tape to get a tighter fit around the core in the HVAC box, and to seal the edges to prevent air from bypassing it too easily. I also used some mold remover (tilex or something) to clean the crap out of the HVAC box. My styrofoam drip tray was full of mold so I tossed it out. No major ill effects yet and got rid of the musty smell in my HVAC