Idler tensioner pulley
 

One of the smooth pulleys just fell off while driving down street what do I need to put it back on. I was able to locate the pulley on the road and bought a new one but I don't have the bolt I need to know the size and length and where to get it and I guess there's dustdguards and spacers I need to know everything that I need to know and have to put it back on can you help

If you lost the main drive belt assembly you need this one.

https://www.z1motorsports.com/fan-ac...de-p-8918.html

If you lost the AC belt tensioner you need this one.

https://www.z1motorsports.com/fan-ac...de-p-9359.html