The part number 604K58410 refers to a Genuine Xerox Doc Feeder (DADF) Maintenance Kit. This kit is designed specifically for use in certain Xerox multifunction printers and copiers, such as the WorkCentre 7525, 5325, 5335, 7125, 7220, 7556, and 7845 models.
Just what the doctor ordered! Had no idea how simple it was to install the new feed rollers but after checking YouTube I found a video. Easy to install and fixed my feeding issues perfectly!! Awesome.