This is an important piece if you want to do an on board air compressor. It bolted right in with the removal of the plastic cover and mount and also the reworking (bent it down a bit, pictured) of a mount for something else (I forget what now, it occupied one of the tray mounting bolts). I recommend using the tap for the base mounting if you have one because I am not completely sure all the threads where actually finished on my vehicle. If you are thinking you will skip that step don’t be surprised if air and a screw driver won’t do the trick. And it shipped quickly so that was an added bonus as well.