TPU was good now not so good

[mehlawlarz]

Yes that does appear to be one of the hotends with less then ideal thermal paste especially near the heatbreak where its most essential, sadly no there is no direct drop in part unless are willing to cut some metal then you can get a extra long MK8 heatbreak and cut it to size or go the route I have outlined here where you use a normal mk8 heatbreak with a volcano adapter.