Copper gear that is attached to the stepper motor used to drive a BMG Extruder.

This product is a filament sensor for the Nextruder, compatible with: 

MK3.9MK4XL

Idler Spring - for use across Most Prusa models except MK2/s and SL1/CW1

This is Extruder Drive Gear (Motor Pinion) replacement for the Original Prusa MINI/+ extruder motor. This drive gear sits directly on the extruder motor shaft.

Stepper motor gear for Titan Extruder

BMG Extruder Gear shaft assembly

This is Extruder Driven Gear (Filament Spur) replacement part for the Original Prusa MINI/+. This is the driven/idler gear pushing the filament inside the extruder assembly.

This product is a replacement screw for the Nextruder compatible with: 

Thumb screw is used to hold the Prusa Nozzle inside the heatsink. For the Nextruder two thumb screws are required.

MK3.9MK4