This review is for kit 49220 which includes what you see here (tensioner and pulley) plus an idler pulley and a new belt. I wouldn't have bought any of this if I knew then what I know now. The biggest problem is that if you've already bought one of those extra long serpentine wrench sets like I did, you might find that you don't have a wrench big enough to install the turnbuckle on this thing! I was able to remove my existing belt using my original tensioner, but when I switched to this…