Im not sure without seeing it on the car, the 1 i replaced is part number UGCGBT6062 on the link you added, i found it easiest to remove the drivers side front wheel then its a bolt underneath to remove tension and 2 to remove the unit. Easy enough job. No need to remove the alternator or any other parts if i remember right, its a unit on its own.
I had trouble with the tensioner bolt ( on the bottom of the unit) as the threads were knackered, unfortunately the new 1 didnt come with a replacement so i struggled to get the new belt on as i couldnt relieve enough tension. When you take the old 1 off remove this completely and clean it up to make sure the threads run smoothly, you need to screw in completely to relieve the tension and unscrew to tighten the belt. Rule of thumb is that you can twist the belt about 90 degrees when tensioned enough IMO. Hope it goes well for you.
I had trouble with the tensioner bolt ( on the bottom of the unit) as the threads were knackered, unfortunately the new 1 didnt come with a replacement so i struggled to get the new belt on as i couldnt relieve enough tension. When you take the old 1 off remove this completely and clean it up to make sure the threads run smoothly, you need to screw in completely to relieve the tension and unscrew to tighten the belt. Rule of thumb is that you can twist the belt about 90 degrees when tensioned enough IMO. Hope it goes well for you.