MK8 Extruder Drive Gear 5mm Bore 9mm OD 11mm Length
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Prices updated: 13 Oct 2026
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About this product
A drive gear for MK8-style extruders used in FDM 3D printers. It has a 5 mm bore, 9 mm outside diameter, 11 mm length and 0.3 module, and is mounted with M3 hexagonal screws. It grips the filament and feeds it toward the hotend.
Specifications
- Bore diameter
- 5 mm
- Outside diameter
- 9 mm
- Length
- 11 mm
- Module
- 0.3
- Mounting screws
- M3 hexagonal
Frequently asked questions
Which extruder is this gear for?
It is designed for MK8-style extruders. The 5 mm bore matches the standard 5 mm motor shaft used on NEMA 17 stepper motors in many MK8 setups. Confirm the shaft size of your motor before installing.
What filament size is it used with?
MK8 extruders are normally used with 1.75 mm filament. Confirm your extruder's filament size before installing the gear.
