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

I would rather a brim around the edges so the belts don’t come off.

Good quality Extruder Wheel 40 Teeth Drive Gear

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.

I had some issues with the filament not feeding properly. This part fixed my issue! It is also great to have some spares!

My step motors cog was worn down and press fit. Ordered a new 40-42 and this set. Completely fixed my issue

These fit and works perfectly, just like OEM parts should, will buy again as necessary.

These are an exact replacement for the Ender-3. Same quality as the original. Definitely needed if you print a lot. Nice that I have extra on hand. Will buy again when needed!

Works very good in my CR-10

Great quality, no burrs. Work perfectly, nice an truely round.

I got this new extruder for my ender 3 max, old one had worn a groove from filament. So far so good. Easy to install, just remove tension spring for access and turn the gear to access grub screws. Print quality had huge improvements.