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

This product is the replacement Hotend heatsink, compatible with: 

MK4XLMK3.9MK4SMK3.9S

Universal lubricant with applicator for printer maintenance.

This product is the replacement MMU2S-Einsy/Rambo signal cable. It is compatible with the MK2.5/S and MK3/S.

High quality machined v6 Heat Block. Supports cartridge style thermistor.

High Quality, Hardened Steel abrasion-resistant v6 style nozzles for 1.75mm filament.

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.

Replacement wiring for the heatbed. Black wire used as GND.

Compatible with: 

MK4MK3.9MK4SMK3.9S

Genuine E3D Prusa Nozzles feature an all-metal filament guide, ensuring that the entire path of the filament through the Nextruder is all-metal, no PTFE tubes anywhere.

This improves the overall reliability of the printer and makes changing nozzles much faster.

Compatible with:

MK3.9MK4/SXLCORE One

This all-metal high-precision nozzle for the Nextruder combines both nozzle and heat-break

Compatible with:

MK3.9MK4/SXLCORE One

The ObXidian Nozzle is a high-quality nozzle designed specifically for abrasive materials and for printing at high temperatures.

Compatible with:

MK3.9MK4/SXLCORE One

Double-sided smooth spring steel sheet for Original Prusa XL 

XL

This product is a replacement Pulley with bearing for the CoreXY, compatible with: 

MK4XLMK4S

Heatbed thermistor set for the Original Prusa MK2/S, MK2.5/S, MK3/S/+ and MINI/+:

MK3SMK3MK2.5SMK2.5MK2SMINIMK3S+MINI+MK2

This all-metal high-precision nozzle for the Nextruder combines both nozzle and heat-break

Compatible with:

MK3.9MK4/SXLCORE One

A high quality aluminum v6 Heatsink/Cooling Block.