Wiliam P Cedar Hill , TX December 18, 2018 Appliance: Model SUB-ZERO 5051SC-2 Old Sub Zero ice maker circulation pump wore out I have about a 30 year old Sub-Zero undercounter ice maker that I have really enjoyed. The circulation pump has been giving me various problems over the last 5 years. I was able to patch it each time. This last time the bearings finally gave out. The cost of a replacement that I found was going to be almost $500. Then I found this. It fit perfectly and works like a charm. Now I have my country club ice again! 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes