Alternator Pulley

[RAWVORTEC]

I have a 2007 suburban 5.3 LMG engine. I believe the squeak I'm hearing is coming from the alternator pulley. I replaced the belt with a continental serpentine and ac belt. Squeak did start after this, but i know its not the belt after spraying it with that belt lube stuff. I'm not sure which alternator pulley I need. Can someone direct me?

 

[SnowDrifter]

You sure it's the pulley and not the alt itself?

 

[jz57]

Could be grease dried inside alternator shaft bearing. If you are sure that the noise is from the alternator, replace it.

 

[Rocket Man]

Pulleys don’t squeak, bearings do. Like others have said, it’s probably the alt.