Review on Creality 3D Extruder Original Ender3Pro: See How It Enhances Your 3D Printing Experience! by Jeff Leu

So in theory this should include all the parts needed to completely replace the feed unit right? It doesn't seem to be the case here, luckily I kept the latest build that came with my Ender 3 V2 otherwise I wouldn't have the parts needed to complete the install. Make sure you do the same. A one-for-one all-metal plastic feed replacement is available for several Creality printers. It works, but I have to note the lack of a "spring cap" and spring screws. I kept the screws from the previous assembly to mount a working spring. In addition, the included spring is MUCH stronger and literally crushes the filament as it is fed. I've had bad prints because the filament was being crushed and twisted on the way to the printhead, which made it pinch well. As with the other issue, I just salvaged an old spring from a previous feeder and it's working again. Overall, after accounting for the issues outlined above, it's good for the price, but I think you'll get a more complete set. if you go with a slightly more expensive one.