I'm not up to 110K miles with the original belt. I called the dealer to get a price on brakes so I also asked for a quote to get the belt and tensioner replaced. I was just going to do the belt but with the mileage and people saying the tensioner can fair, I thought it would be best to have that done too. The person I spoke with said there are two tensioners. One is $250 and the other is $390. He went on to say there is another part # for the bracket and two tensioners combined. It ends up being cheaper than just buying one of them. Most likely the expensive one. He said it would be $780 to replace both with the belt. I pulled up some info. I found that with a retail of $350 and I can get it online for about $215. Add $50 for the belt. I'll have to take a look at that quote.