Chosen Solution
I purchased a 2019 Mac 21.5” with 4K Retina display for stupid cheap. Are there parts available for it or is the 2017 4K Retina display compatible?
In Step 4 of this teardown you can see that the LCD cable in the 2019 differs from the 2017. You can find the 2019 displays from individual sellers online, here’s a link to an eBay post. Hope this helps!
Here’s the parts info, as you can see the P/N are very different! You need to get the correct display for your system. 2019 System: 21.5” iMac Retina 4K LCD Panel & Front Glass Assembly, Apple P/N 661-125642017 System: 21.5 iMac 4K LCD Panel & Front Glass Assembly, Apple P/N 661-07322
