2005 Tahoe Radiator PN confirmation

[Doubeleive]

I learned that lesson a while back with a blend door actuator I needed for the rear HVAC. It felt like every number I kept pulling up was superseded by another GM #. It doesn't help that the vehicle is > 20 years old now and parts have been reused across generations but it is what it is.

I'll see if I can cancel my secondary order for the other radiator. If not, I'll just return it after the job is done. I did go back and look at RA to see what applications there were for #21647 and my Tahoe isn't even listed, even though the alternate inventory number is 19256745, which is the number that superseded my current radiator.

nothing wrong with having a backup part, sometimes it can depend upon your location and specific needs.
not all of us are a block away from a auto parts store and there are some specific parts that are order only almost anywhere.
with the current "climate" a person might be wise to get it while the getting is good.

 

[nick0789]

Just an update. I got 21650 delivered just now and while it is also 34” for the core length, it’s only 1.10” thick. My current radiator (which would be 21647, aside from the length discrepancy in the part description) is 1.37” thick.