Creality 3D Printer Parts 5PCS Brass Extruder Wheel 40 Teeth Drive Gear for CR-10.CR-10S,S4,S5,Ender 3,Ender 3 Pro,Ender 3 V2

What an improvement. Pics show new one installed next to the old one. Best part is I now have spares in case I ever need to replace this one. Not hard to replace, just check out YouTube videos on replacement.

Easy to install and helps me with my CR10 issue

Good quality, used on Ender 3x

Good quality Extruder Wheel 40 Teeth Drive Gear

Without these i would have given up on 3d printing. After switching between many extruders and gears these are by far the best for making sure there is no gear slippage. Make sure though you have the right extruder or it wont fit.

These are perfect swap parts for the Ender 3 motor to keep your filament going. My old one had over 700 hours on it and started to slip a little, put one of these on and no problems since.