This product is the replacement IR filament sensor. It is ONLY compatible with the MK2.5S and MK3S/MK3S+. It is NOT compatible with the MK2.5 and MK3.

The MK4->MK4S Upgrade Kit contains everything you need to fully upgrade your stock MK4 3D printer to the new MK4S.

The upgrade is supplied as a kit - you need to assemble it yourself. 

This kit is for the newer xLCD version

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

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

Replacement bearing clips set for the y-carriage (y-axis).

Compatible with: 

MK4MK3.9MK4SMK3.9S

This product is a replacement set of Expansion joints for the heatbed.

Compatible with: 

MK4MK3.9MK4SMK3.9S

This product is the replacement Hotend heaterblock MINI. It is ONLY compatible with the Original Prusa MINI/+.

Prusament PLA is an in-house-made filament at Prusa Research. The whole manufacturing process is closely monitored and tested - guarantee ±0.02mm precision and highly consistent colors.  You can inspect the parameters of every spool made at prusament.com. 

Double-sided textured PEI powder-coated spring steel sheet for the Original Prusa Mini/Mini+

Linear bearing LM10UU

Compatible with: 

MINIMINI+MK3.9/SMK4/S

This product is the replacement power cable connecting xBuddy board and the power supply unit (PSU). It is ONLY compatible with the black PSU.

Compatible with: 

MK4MK3.9MK4SMK3.9S

This product is the replacement Heatbed to Einsy power cable. It is ONLY compatible with the heatbeds with detachable power cable. It is NOT compatible with heatbeds with power cable soldered directly onto the heatbed.

Steel needle file set.

This product is an optional accessory, compatible with: 

MK3.9MK4XL

Nozzle X from E3D's V6 line-up is recommended for printing abrasive material and at high temperatures, which causes the standard brass nozzle to wear out very quickly.