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

Good quality Extruder Wheel 40 Teeth Drive Gear

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.

Great product.

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.

Very durable accurate fit works perfectly.

Only used one so far, but perfect fit with zero issues.

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

Works great!

I purchased these for spare parts for my printer. I havent used them yet but they look identical to the factory parts.

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