I am having the timing cover gasket changed on my 2007 Vantage (less that 5K on the odometer).
It seems appropriate to also change the serpentine belt and idler pulley to the newer style.
Based on an old post by irish, I have given the dealer the following part numbers.

Newer belt for newer pulley: 9G33-8620-AA
Newer idler pulley: 9G33-19A216-AA

Are these part numbers correct?

Thanks

 

Yes, those are the updated (current) part numbers you need.

 

Thanks Rich

 

I just did mine and it fixed the issue.