Which AC compressor do I need?

[76Nick]

I'm not sure if this is the right sub forum but I have an 03 Tahoe Z71 flex, I know there are a couple different AC compressors. Is there a way to tell which one I need to order without pulling it out of the truck first? I am hoping to not have to take it out until I have the replacement to put right back in. Thank you!

 

[Blackcar]

In link says if you have AUX air this is one needed.

https://www.gmpartsnow.com/oem-parts/gm-f-s-compressor-19433081?c=Zz1odmFjJnM9Y29uZGVuc2VyLWNvbXByZXNzb3ItYW5kLWxpbmVzJmw9MjMmbj1Bc3NlbWJsaWVzIFBhZ2UmYT1jaGV2cm9sZXQmbz10YWhvZSZ5PTIwMDMmdD1sdCZlPTUtM2wtdjgtZmxleA%3D%3D

 

[76Nick]

In link says if you have AUX air this is one needed.

https://www.gmpartsnow.com/oem-parts/gm-f-s-compressor-19433081?c=Zz1odmFjJnM9Y29uZGVuc2VyLWNvbXByZXNzb3ItYW5kLWxpbmVzJmw9MjMmbj1Bc3NlbWJsaWVzIFBhZ2UmYT1jaGV2cm9sZXQmbz10YWhvZSZ5PTIwMDMmdD1sdCZlPTUtM2wtdjgtZmxleA%3D%3D

Aux meaning rear air? Unfortunately that one says unavailable but I can try to find it somewhere else if that's the correct one.

 

[Doubeleive]

I'm not sure if this is the right sub forum but I have an 03 Tahoe Z71 flex, I know there are a couple different AC compressors. Is there a way to tell which one I need to order without pulling it out of the truck first? I am hoping to not have to take it out until I have the replacement to put right back in. Thank you!

there are so many different ones you pretty much just have to match it up visually be sure it has all the same ports/valves/connections.

 

[76Nick]

Yeah that's what I was thinking I would probably have to do. I watched a YouTube video where one looked identical to the aone being replaced but the hole for the pressure sensor was deeper so I don't want to end up in a crapshoot.

there are so many different ones you pretty much just have to match it up visually be sure it has all the same ports/valves/connections.

 

[Doubeleive]

Yeah that's what I was thinking I would probably have to do. I watched a YouTube video where one looked identical to the aone being replaced but the hole for the pressure sensor was deeper so I don't want to end up in a crapshoot.

ya if you have that sensor the replacement has to have it as well, I am pretty sure they cannot be swapped over, been down this road before, we just looked at pictures of them until we found one that matched.

 

[Doubeleive]

and I presume the z71 is 4wd? if so that's another fun part you can get them in and out but it's like a jigsaw puzzle, it has to be turned a certain way to get it out and same when putting the replacement back in. It will come out towards the front

 

[76Nick]

I have to just get under the truck and try to view it from different angles and hopefully I'll be able to tell which one from pictures.

 

[Blackcar]

Aux meaning rear air? Unfortunately that one says unavailable but I can try to find it somewhere else if that's the correct one.

This web site in link has one with GM part number.

https://www.carid.com/acdelco/gm-original-equipment-a-c-compressor-mpn-19433081.html?msockid=11a315bc0cfd6a2b243c00030d9f6b04

 

[76Nick]

and I presume the z71 is 4wd? if so that's another fun part you can get them in and out but it's like a jigsaw puzzle, it has to be turned a certain way to get it out and same when putting the replacement back in. It will come out towards the front

Yes it's 4WD. Yeah I was just going to remove the wheel and fender liner and do it that way but yeah everything is harder on a 4WD. I have to do my oil pan gasket and that will be hell between it being 4WD and the lift kit .