Sliding door roller replacement kit.  The two main rollers in our kit use a Delrin outer surface with a precision roller bearing in the center that is held in by a snap ring. The Delrin outers give it a very smooth operation. Your sliding door will roll easily with less noise.

These Delrin rollers replace the original 251843419 vertical roller on the front lower part of the sliding door and the original251843361B roller on the articulating arm on the sliding door hinge at the rear of the sliding door.

Please note it will likely require the use of a small bearing puller to remove some of the old rollers on your sliding door.