What alternator do I have?

[Spaceman Spiff]

2005 Tahoe, 5.3 non flex fuel. Electric fans.
How do I determine which alternator I have?
Going to replace the belts, hoses, tensioners.
I see different belts listed, depending on what amp alternator I have.
How would I find that out? Something on the alternator itself? Code on the glove box door?
Thanks !

 

[GreyStone]

go to #4
https://www.tahoeyukonforum.com/threads/alternator-amperage.8256/

 

[Fless]

If your serp belt has numbers on it you can read, you can cross-ref and find the length. Just in case the alternator has been changed from stock.

 

[OR VietVet]

There is also a stamp of the alternator output on the case of the alternator body. Plus the correct RPO code.