BIQU Extruder Pulley 36Teeth Bore 5mm Stainless Steel Drive Gear for 1.75mm & 3mm 3D Printer Filament (Pack of 5pcs)

Old brass extruder gear wore out quickly. Bought these and it has 0 wear to it. Buy if you need new extruder gears.

The original that came with the printer is too cheap and bad. My printer stopped extruding everytime because of them. With these my problem went away. I replace them in an Ender 3 v2

I like these a lot better than the brass ones that the Ender 3 comes with. They seem a lot more durable and grip pretty well. I dont think Ill have to replace one of these for a long time.

Not sure what I was using before, but these saved my printer to now print TPU like gang busters! If you are struggling with printing TPU, these are grippy and work. It may not be your only problem, but it will eliminate a variable for why it may not be working..... (TPU is hard to print). Worth the price and should last a lifetime.

Always had problems with my ender 3 with under extrusion with certain filament brands at normal temps. Work around was to increase temp which caused stringing or blobs till I found these steel gears for the extruder. Made a difference reminds me of the original ones you find on a wanhao i3. Must buy for Ender 3.

Got these for the ender 3 extruder they work much better than the brass ones that came on it.

good good in the hood

quick fix to my extrusion problems!

I bought these to replace the one that came with my Anet A8 extruder and it works great! Way better than the one that came with my printer with less than 24 teeth.

Worked good on my cr-10s