Fixing a worn wheel bearing would traditionally require a difficult procedure using a hydraulic press, or purchasing multiple components. This Dorman OE FIX loaded knuckle includes all critical components already assembled for a fast, simple, safe install.
Great to have a loaded knuckle as this is called. The other option is to remove the knuckle on your car and get the old bearings knocked out and the new ones pressed in. If you can do all that yourself maybe that’s ok. If not get a new bearing in a new knuckle and save a lot of time and effort. Had to pay a little more since the ones at a cheaper price were out of stock.