Has anyone had to buy one of these? I think I'm going to pick one up and see if that helps me out. Since the 6.0 and ASP pulley, the darn AC Belt keeps pulling off the tensioner and throwing the belt. I've shimmed the tensioner, but still the same problem. I took it off yesterday evening and it doesn't look like she's true, so that's why I'm going for a new one.

Now, my dilema is finding the part number so I can call the dealer and see if they have one in stock. I searched the parts and accessrory thread and got PN 12565372 from JSmith, but GMparts direct doesn't list it. The PN on my tensioner (1256065) doesn't come up on the search either..

So, any help is appreciated.

 

12580196 is the A/C tensioner number

 

Thanks!