ac tensioner pulley
12557334 is the tensioner pulley
12557335 is the idler pulley.
They both come with bolts and are super easy to install.
I think I may need a tensioner though. Anyone know how to tell for sure if the tensioner needs replacing? I put my steathascope with open ended tube on all the bolts and it is definately noisy near the tensioner but nothing like a typical bad pulley sounds like.


