When my QIDI Plus4 hotend went into meltdown from trying to print with wet PETG, ruining the entire hotend, an internet search sent me to West3D, where I could buy the heater and termistor replacement. Both Amazon and QIDI only stock the entire hot end. Since the metal parts are fine, it made little sense replacing everything. West3D came to the rescue.
This replacement unit did the trick. But there was a major problem - the cable is nearly 2 inches too short. You will struggle to install this. It was completely impossible to route the cable like the original, via a clip at the front of the printhead. Instead I had to re-route it on the right side under the filament cutter, and even then, it barely reached. Installed, it works flawlessly but installation was a real pain.
