Everything needed was included, and very easy to install. If you use a glass bed, the Z-axis stop will need to be adjusted up about 3mms

Bought it a month ago and worked great, but was disappointed when I noticed extrusion problems after a long (25 hour) print using glow-in-the-dark filament. I know that type of filament is abrasive, but that is the whole point of buying an all-metal extruder assembly. Took apart the extruder to clean it only to find the hole where the filament enters the extruder had worn out completely. Fortunately it is inexpensive to replace, but was disappointed that it didnt last longer. The replacement bed springs and adjustment knobs are working as expected.

These springs are a serious upgrade over the stock Ender 3 Pro springs! I read a lot of notes saying that the stock springs just didnt have enough tension in them, and after every few print jobs I was having to level the bed again. Not the end of the world, but if something will solve that problem for under 20 bucks, and upgrade the extruder to aluminum, why the heck not go for it? Everything arrived quickly and was neatly packaged. After opening the bag with the bed springs and wheels, I was impressed. The springs are very beefy, the wheels are nicely made and have good grippy teeth on them, which will make fine adjustment much easier, plus the pop of red under the printer is a nice touch. Installation was pretty simple: Unscrew the stock adjustment wheels until they come off the screws. Lift the bed up (being careful not to damage the bed heat wires). Remove old springs. Then I set the rear springs in place and put the bed screws down through them to hold them in place, and then tilted front of the bed down and slipped in the front springs. It was a little awkward to get it all lined up, but nothing too bad at all. After that, I attached the fancy new adjustment wheels. I went around the bed, tightening each corner to around 25%, 50%, then 75%, then finally 100% of the way down. I figured I should tighten them up gradually to keep from twisting the bed or knocking anything too far out of whack. Happy with how things looked, I turned on the printer and hit auto-home, and discovered a problem: Home position now had the nozzle below the print bed! I went back and checked the adjustment wheels and they were cranked down as tight as I could get them. I ended up raising the Z-axis about 2mm and that looked better, so I adjusted the Z-axis stop switch up until it clicked against the bed. Then I fired up the printer again and auto-homed it. Much better! I could see I had a gap now. I dont know if it was the upgraded parts, luck, or what, but leveling was much quicker. I leveled all four corners, then checked the center and it was dead on. After that I went back around the corners to check them all. The front left needed a tiny tweak and everything else was dead-on. The aluminum knobs are super grippy and very easy to make tiny adjustments. The stock plastic wheels werent terrible, but there are definitely better. Ive run 3 or 4 prints since doing the upgrade, and after that batch was done, I checked the level again. Still dead on , right where I left it! Hoping that continues, and things stay exactly where I put them. The extruder upgrade is really nice as well. It went on without any hassle, and feels way better than the cheap plastic included with the Ender 3. (just make sure when you remove the old one that you support the motor - the extruder is what holds it in place and when you remove the last screw, its going to drop!) The thing I like most about it is that its silver so its MUCH easier to see the hole past the gears that you have to get the filament into. That was a huge struggle for me with the black plastic, and with the new silver extruder, you can see exactly where the filament is going and it slipped right in with no trouble at all. I will say that the spring that came with the extruder was bigger and harder to compress than the stock one, and I didnt like the feel of it installed, so I used the stock spring and its been great so far.

The plastic extruder that was included with my machine was wearing down within the first few weeks. This is one of my first upgrade it was incredibly helpful. Note: this set did not include the yellow springs

Product was exactly as described, works fantastic. I would recommend anyone having issues with leveling or extruder skips to purchase this kit. Its fantastic

Almost everything in this is great. The only complaint I have are the springs. They are about 8 mm too long. The extruder is a huge improvement over my stock one. The red wheels are a nice touch and the feeder is great! If I were to buy over again, I would look somewhere else with a better spring.

I wish I could review the entire kit but the only usable item for me are the red tensioning wheels. Wheels: great Springs for wheels: way too long to be useful anywhere. Extruder: worthless. I’ve had to use stock screws, specialty parts and it still won’t feed filament. Update May 11: despite best efforts, none of the parts were usable for my printer. The wheels would cause the bed to raise over longer prints, failing multiple larger pieces, extruder assembly never did function properly. I’m keeping them as spares just in case a third machine will work better, but as of right now, not the parts for me.

a must purchase upgrade. Takes away some problems and hassles. Makes level the bed easier and not having to level the bed before each print.

It lasted only a short time before the threads wore out where the screw holds the wheel in the handle.. had to put the old handle back on temporarily.. I know the one I got wasn’t worth …. Maybe just this item .. but it broke …

I would recommend! Just make sure to adjust the ESteps and z-axis sensor after for best performance. (Very important steps)