Heater cores are aluminum now??

[Shopdog]

Think it was our '81 F150 shop truck?

Heater core can be accessed from engine bay by cutting the housing open. New sheet metal flat cover,RTV and self tapping screws to finish. About 20 minutes or so.

[Rickf1985]

Jeep CJ, take passenger side door off and everything is right there in front of you bolted to the inside of the dash. Can have it out in 5 minutes. Probably faster with todays battery powered tools.

[ebb]

I have had several square body Chevies and the oldest had a brass core and I replaced it with one but it started leaking a third time before I got rid of it and the loas one was aluminum. Not as bad to replace as it sounds, a battery drill or driver speeds it up a lot.

[Rickf1985]

One thing you need to check with heater cores is electrolysis, If you have a bad ground on the engine then voltage will pass to the heater core and etch it out quickly. Chevies had a big problem with this. Also need to be sure the core is grounded and the blower is grounded.

[.429&H110]

Carrier has an aluminum outlet tube from their condenser.
We want to stop r-22 at 250#
So Carrier sends JBWeld with a part number, expensive epoxy.
slide copper into aluminum greased by JBWeld
works for me.

[Budzilla 19]

Just replaced the radiator in a ‘95 Dodge Cummins diesel truck, 530,000 plus miles, on it. OEM radiator was brass core, plastic tanks. NEW radiator was aluminum cores, plastic tanks. Heater core we replaced 4 years ago was an aluminum core replacement! It runs cooler, by the way!

[Barry54]

You might research different types of anti-freeze if you install that aluminum heater core. I think the old school green kind became obsolete, because of aluminum parts.