How do I identify what alternator I have in a '04 Yukon Denali

[justirv]

Thanks

Where do you see the RPO code I've been trying to see it the whole time it's good that you identified it for me and confirmed that it's a 145.

Yeah the bearings are squealing really loud on on my alternator when I drive but the alternator works great so I'm just going to change it with a 145 next week when I get the part

OP, was that your picture of the RPO Codes? That label is located inside the glovebox, on the inside of the door. On the picture posted, one can see KG3 in the middle, = to 145A

 

[justirv]

OP, was that your picture of the RPO Codes? That label is located inside the glovebox, on the inside of the door. On the picture posted, one can see KG3 in the middle, = to 145A