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2002 F55 STS, 2014 Explorer XLT, F-150
80,443 Posts
CTS-V was factory supercharged. Here's a page from the "belt drive" section of the Rock Auto website for the 2006 CTS-V 6.0 engine.

As with other belt tensioner assemblies, it appears that your pulley is replaceable separately from the tensioner itself. Open that ^^^ link, use the red X to close the page, and look at the "tensioner pulley" listings.
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