Used 610-00009 21″ iMac Fan
Fits:
Apple iMac 21.5″ Late 2015 1080p
Apple iMac 21.5″ Late 2015 4k
Apple iMac 21.5″ Mid 2017 1080p
Apple iMac 21.5″ Mid 2017 4k
Apple iMac 21.5″ Early 2019 4k
Part numbers: 610-00009, 610-00122, 923-00563, 610-00006
Fully tested working part