Related links, images and relevant information involving this howtube video.
This is a how to for replacing just the pulley bearings on the tensioner pulley on many Toyota and Lexus vehicles. The replacement bearings are part number 6203-2rs (the 2-rs is for "rubber sealed" on both sides so many different 6203 bearings will work)
Here is what I think is a complete list of the cars that use this pulley;
FJ Cruiser 2010-2014