Works perfectly, everything is built in, everything is fine, only criticism is that the idler pulley supplied cannot be used as the bolt from the factory pulley does not go through it. Someone else commented on this and is browsing too, so I know I'm not the only one feeling this way. For this reason I only used the old one. I hate it, but when you're out there tearing up something you just want to make, it took a while, it's not a job for you at home in the garage. You have all the necessary tools, it will take you a lot of time and be a pain in the ass. Kia Spectra 2009