Product review (5 stars): Perfect fit.
Perfect fit. Fussy to remove and put back together, but if you're stubborn, cheap and handy, this will save you lots of money. The way to diagnose this piece is to turn the white plastic wheel at the front end of the big corkscrew metal auger inside the bin. If the wheel turns freely without turning the auger, then this helix lock has a rounded out hole and needs to be replaced. The icemaker won't dispense ice, or very little. The bin will just fill up with ice.