Which parts house heater core?

[mybuick]

when i bought mine from gm 5/23/02

part number 3056515

list price 90.93

cost price 63.65

this is for the 86 and 87 gn's it fit in my 84 gn and my friends 86 gn

 

[1quick6]

I just replaced mine with a Rock Auto unit. It fit just fine for $23.

SPECTRA PREMIUM Part # 94505
W/ AC

It really isn't a bad job at all. Just make sure you get all of the screws out of the heater box cover or you will break it prying it off. They are TR specific and hard to find! You can't just grab one from any G-body and a pick-n-pull.

I have a writeup on my site. -> http://www.cedarcrestspeedlab.com/techarticles.html

 

[GullsGN]

If you have an AC Delco dealer in your area I bet you will get the correct one. It was a couple of years ago, but the advice then was AC Delco was the perfect fit, and it was exactly that when I put it in. Looked exactly like the original.

 

[GullsGN]

This is one of those parts that should be removed first and brought with you to the parts store.