Parts & upgrades that fit the Prusa MK3S
The Prusa MK3S is a mid-size printer with a 250 × 210 × 210 mm build volume (11.0 liters), smaller than 85% of the 376 printers we track.
Its slicer profile lists profiles for 0.25 mm, 0.4 mm, 0.6 mm and 0.8 mm nozzles.
We found 24 parts listed as compatible with it, led by 5 upgrade kits, 5 spare parts and 3 hotends & heaters, from 4 stores: E3D, Fabreeko, Printed Solid and West3D.
Nozzles for the Prusa MK3S
E3D Revo™ Prusa MK3/MK3s/MK3s+ Coldside
Hotends & heaters for the Prusa MK3S
Bondtech LGX Accessories for MK3S & Mosquito
Listed as compatibleHotends & heatersFabreekoBondtech LGX X-carriage for MK3S & Mosquito
Listed as compatibleHotends & heatersFabreekoOriginal Prusa Assembled hotend (for MK3 series)
Listed as compatibleHotends & heatersPrusa Researchsold by Printed Solid
Extruders & gears for the Prusa MK3S
Roto Extruder Prusa MK3 Edition
“This kit does not include the Roto Filament Sensor as it is only compatible with the MK3S and MK3S+.”
Electronics & sensors for the Prusa MK3S
Original Prusa Einsy RAMBo (MK3S/+)
Listed as compatibleElectronics & sensorsPrusa Researchsold by Printed SolidOriginal Prusa LCD MK3S+ (with cables)
Listed as compatibleElectronics & sensorsPrusa Researchsold by Printed SolidSuperPINDA Probe for Prusa MK3 MK3S MK2 MK2.5 Mini Etc.
Listed as compatibleElectronics & sensorsPrusa Researchsold by West3D
Spool & filament feed for the Prusa MK3S
Original Prusa MK2.5S, MK3S Hotend PTFE tube
Listed as compatibleSpool & filament feedPrusa Researchsold by Printed SolidOriginal Prusa MK3S+, MMU2S Hotend PTFE tube
Listed as compatibleSpool & filament feedPrusa Researchsold by Printed SolidHotend PTFE Tube (MK3S+, MMU2S)
Listed as compatibleSpool & filament feedPrusa Researchsold by West3D
Enclosure & cooling for the Prusa MK3S
Original Prusa Enclosure Add-On's
Listed as compatibleEnclosure & coolingPrusa Researchsold by Printed Solid“NOTE: MK3S+ compatible only.”
Original Prusa MK3S+ Hotend Fan
Listed as compatibleEnclosure & coolingPrusa Researchsold by Printed Solid5015 Blower Fan 5v Fan (Prusa MK3 / MK3S replacement) by LDO Motors
Listed as compatibleEnclosure & coolingLDOsold by West3D
Upgrade kits for the Prusa MK3S
All 5 upgrade kits →Original Prusa i3 MK3/S to MK3S+ upgrade kit
Listed as compatibleUpgrade kitsPrusa Researchsold by Printed SolidOriginal Prusa MMU3 upgrade kit (for MK3S+ Only)
Listed as compatibleUpgrade kitsPrusa Researchsold by Printed SolidOriginal Prusa MMU3 (for MK4S/MK3.9S) - Assembled
Listed as compatibleUpgrade kitsPrusa Researchsold by Printed Solid“Full two-way communication with the printer, Compatible with the MK3S+ and MK4.”
Original Prusa MMU3 (for MK4S/MK3.9S) - Full kit
Listed as compatibleUpgrade kitsPrusa Researchsold by Printed Solid“Full two-way communication with the printer, Compatible with the MK3S+ and MK4.”
Spare parts for the Prusa MK3S
All 5 spare parts →Original Prusa MK3S+ Plastic parts set (Black)
Listed as compatibleSpare partsPrusa Researchsold by Printed SolidOriginal Prusa MK3S+ Plastic parts set (Orange)
Listed as compatibleSpare partsPrusa Researchsold by Printed SolidOriginal Prusa Bearing Clips (MK3S+)
Listed as compatibleSpare partsPrusa Researchsold by Printed SolidOriginal Prusa MK3S+ Printed Parts
Listed as compatibleSpare partsPrusa Researchsold by Printed Solid
Printers a similar size to the MK3S
Compare build volumes →
Prusa MK3S questions
What is the build volume of the Prusa MK3S?
250 × 210 × 210 mm (width × depth × height), about 11.0 liters of printable space, per its OrcaSlicer profile.
What nozzle sizes does the Prusa MK3S support?
Its slicer profile includes 0.25 mm, 0.4 mm, 0.6 mm and 0.8 mm nozzles. 0.4 mm is the usual default.
Which nozzles fit the Prusa MK3S?
1 listing names the Prusa MK3S as compatible, including E3D Revo™ Prusa MK3/MK3s/MK3s+ Coldside (Printed Solid). Check each listing's note for revision or adapter requirements.
Which hotends fit the Prusa MK3S?
3 listings name the Prusa MK3S as compatible, including Bondtech LGX Accessories for MK3S & Mosquito (Fabreeko), Bondtech LGX X-carriage for MK3S & Mosquito (Fabreeko) and Original Prusa Assembled hotend (for MK3 series) (Printed Solid). Check each listing's note for revision or adapter requirements.
Which printers are a similar size to the Prusa MK3S?
Prusa MK3.5 (250 × 210 × 210 mm), Qidi X-Plus (270 × 200 × 200 mm) and Flashforge AD5X (220 × 220 × 220 mm).
Did a part fit your MK3S?
Tell us what you installed. We review every report, and confirmed ones are marked as verified fits.