Ewigkeit 12V 40W Ceramic Cartridge Heater and 3950 100K NTC Thermistor with Female Pin Head for RepRap 3D Printer Heatbed or Hot End

I am very happy with these. My 3d printer stopped working recently, and I narrowed it down to the element, thermistor, or the extruder motor. When I tested the motor, I found it to work, which meant the hot end had to be the culprit. running it by hand, I found that it was only staying warm for a few seconds then it would get too cold to melt PLA causing it to harden and clog in the tip. It was the thermistor. Due to the low cost of this and the blocks, I just rebuilt the entire assembly and got back up and running again. These seem to be high quality,and well made. Fair warning.. the thermistor harness has an end that will not work on an Anet A8, you'll have to do some splicing.

I was worried about using alternative products with my E3D V6, but these are doing alright.If anything, I have two complaints: they use connectors built to plug directly into the TriGorilla board, and at least on my AnyCubic i3, there's a secondary circuit board with different connectors, mounted on the printhead, so I always have to swap out the connectors when replacing cartridges or thermistors.Second: the thermistor is basically naked. The copper wire is inside a tiny glass (?) bead, while the E3D block is built for a little copper jacketed cartridge, so getting placement right without pinching the wires or getting wildly inaccurate readings is a bit of a challenge.But overall for the price and volume, an admirable little kit.

They fit and do the job, that is all I ask since heaters burn out all the time.

Used these to repair a Robo3d R1+ heater and thermistor. Works great. If you are replacing the thermistor on the Robo3d R1+, make sure you get some high temp silicone as well because the R1+ has a metal cartridge that the thermistor is embedded in on the Hexagon hot end. You will have to dig out the old thermistor and re-use the metal cartridge with some silicone on the new thermistor to hold it in place.

I dont know if these things were soaked in oil but it smells like burning plastic and you can see small wisps of smoke. I am hoping it goes away over time.Besides that it seems to work

Started a print and about 5 min. in I noticed the nozzle wasn't extruding any filament. Then I saw the heat had dropped to almost room temperature. Once I replaced the heater cartridge everything was working perfectly again. No complaints so far.

2 of the 5 thermistors don’t read temperature, fortunately at least 1 worked so I could get back to printing. Expect at least one to be faultyWouldn’t buy again

Works fine in my Maker Select v2, just don't accidentally hook these up to a 24v printer like the Maker Select Plus or you'll get a nasty cloud of grey smoke and a dead cartridge for your effort.