Prusa Mini Assembled Hotend Kit Heat Break with Heatsink Heater Block V6 Nozzle 0.4mm Set for Prusa Mini Replacement Or DIY Parts

The heatsink is well cast, and and ptfe pass-through connector is nice. Threads are fine. The heatblock is a cast version (like the clones, not the E3D version, but works fine). The silicone sock is the version with the small hole, not the big hole (better protection, but harder to adjust). Nothing was missing (but note it doesn't come with a thermistor or heating element).The major difference between this and the OEM version is that the PTFE tube goes all the way down into the heatblock. This means you really shouldn't print over 250C with this hotend (should be find for PLA and PETG, maybe not ABS). On the other hand, it makes for a very smooth filament path all the way to the heatblock.

The heatsink mounts on the printer perfectly, and the hotend block/heatbreak is more standardized making it easier to replace later if needed. However the Bowden fitting (for the ptfe tube) isn't the same type used on the original and the fitting from the original doesn't fit this heatsink. Meaning I had to cut off the brass stopper on my original PTFE tube to securely fit in this kits included fitting. I'm looking into getting similar fitting for the extruder side so I can use generic PTFE tubes from now on.The kit also doesn't include a PTFE liner in the heatsink the same way the original does, I've heard it's suppose to help with printing flexibles, but I never tried it with the old heatsink so I'm not certain it performs any differently in this regard.The included sock doesn't fit on my hotend very well, but that may be because my thermistor doesn't extend out the other side. I've tried pushing it all the way thru but when I do the wires are partially inside the mounting hole and could have been easily damaged from the attempt. Not sure if this unique to my Mini (it was like that stock as well)One last nit-picky thing is it doesn't come with any thermal grease for the heartbreak, like the OEM part does.

While it is a functional hot end, the PTFE tube that originally comes with the mini+ isn not compatible, luckily I had some spare tube lying around, but I have the issue of the side connecting to the extrusion feeding motor not sitting. It’s currently hot glued and taped in place until I figure out a better solution.

The original hotend had stripped screw and this replacement worked great!