Original Prusa MK3.9S is listed in the Prusa Research 3D printer catalog. This page separates documented specifications from scoped compatibility rules, so an unlisted combination stays unverified.
As an Amazon Associate I earn from qualifying purchases.
Advertisement
Before you rely on a result
A documented product or fit statement is only as specific as its source. Match the exact model, installed hotend, revision, and required adapter before acting.
Exact identification
Catalog ID: prusa-mk3-9s. Manufacturer: Prusa Research. Model or part number: Original Prusa MK3.9S.
Manufacturer-recorded specifications
Values below are only fields recorded from the linked manufacturer material. A missing value means the source set did not establish it; it does not imply zero or no limit.
| Specification | Documented value |
|---|---|
| Model code | Original Prusa MK3.9S |
| Filament diameter | 1.75 mm |
Model-specific notes
- Legacy model identity preserved separately; unverified numeric specifications are not copied from its successor.
Advertisement
Revision and installed hotend
No separate revision is recorded here. Check the label on your machine and the currently installed hotend before ordering.
Cataloged hotend family: Prusa Nextruder. This does not identify an aftermarket modification.
Documented relationships
Showing 15 of 15 linked rules. The checker can inspect an exact pair and source. A verified rule may still require its listed conditions.
| Related item | Source status | Fit axis | Conditions and exclusions |
|---|---|---|---|
| Brass Prusa Nextruder Nozzles — 0.25mm | CONDITIONAL | nozzle to printer | Use the exact stock interface/revision named by the manufacturer; a modified hotend may require a different nozzle.; Select and calibrate the matching nozzle diameter in the slicer.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| Brass Prusa Nextruder Nozzles — 0.4mm | CONDITIONAL | nozzle to printer | Use the exact stock interface/revision named by the manufacturer; a modified hotend may require a different nozzle.; Select and calibrate the matching nozzle diameter in the slicer.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| Brass Prusa Nextruder Nozzles — 0.6mm | CONDITIONAL | nozzle to printer | Use the exact stock interface/revision named by the manufacturer; a modified hotend may require a different nozzle.; Select and calibrate the matching nozzle diameter in the slicer.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| Brass Prusa Nextruder Nozzles — 0.8mm | CONDITIONAL | nozzle to printer | Use the exact stock interface/revision named by the manufacturer; a modified hotend may require a different nozzle.; Select and calibrate the matching nozzle diameter in the slicer.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| Brass High Flow Prusa Nextruder Nozzles — 0.4mm | CONDITIONAL | nozzle to printer | Use the exact stock interface/revision named by the manufacturer; a modified hotend may require a different nozzle.; Select and calibrate the matching nozzle diameter in the slicer.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| Brass High Flow Prusa Nextruder Nozzles — 0.6mm | CONDITIONAL | nozzle to printer | Use the exact stock interface/revision named by the manufacturer; a modified hotend may require a different nozzle.; Select and calibrate the matching nozzle diameter in the slicer.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| Brass High Flow Prusa Nextruder Nozzles — 0.8mm | CONDITIONAL | nozzle to printer | Use the exact stock interface/revision named by the manufacturer; a modified hotend may require a different nozzle.; Select and calibrate the matching nozzle diameter in the slicer.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| ObXidian® Prusa Nextruder Nozzles — 0.4mm | CONDITIONAL | nozzle to printer | Use the exact stock interface/revision named by the manufacturer; a modified hotend may require a different nozzle.; Select and calibrate the matching nozzle diameter in the slicer.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| ObXidian® Prusa Nextruder Nozzles — 0.6mm | CONDITIONAL | nozzle to printer | Use the exact stock interface/revision named by the manufacturer; a modified hotend may require a different nozzle.; Select and calibrate the matching nozzle diameter in the slicer.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| ObXidian® High Flow Prusa Nextruder Nozzles — 0.4mm | CONDITIONAL | nozzle to printer | Use the exact stock interface/revision named by the manufacturer; a modified hotend may require a different nozzle.; Select and calibrate the matching nozzle diameter in the slicer.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| ObXidian® High Flow Prusa Nextruder Nozzles — 0.6mm | CONDITIONAL | nozzle to printer | Use the exact stock interface/revision named by the manufacturer; a modified hotend may require a different nozzle.; Select and calibrate the matching nozzle diameter in the slicer.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| ObXidian® High Flow Prusa Nextruder Nozzles — 0.8mm | CONDITIONAL | nozzle to printer | Use the exact stock interface/revision named by the manufacturer; a modified hotend may require a different nozzle.; Select and calibrate the matching nozzle diameter in the slicer.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| Nextruder Hotend brass High Flow - 0.40 mm | CONDITIONAL | hotend to printer | Printer must use the Nextruder configuration, not an INDX conversion.; Follow the exact printer-specific installation instructions; heater/sensor wiring and firmware remain part of the required setup.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| Nextruder V6 Nozzle Adapter | CONDITIONAL | part to printer | Nextruder-equipped configuration only; follow the specified installation guide.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| Original Prusa MMU3 | CONDITIONAL | feeder to printer | Use the correct printer-specific MMU3 kit, wiring harness, buffer and extruder modification.; Use matched printer/MMU firmware and the correct printer/MMU PrusaSlicer profile. |
Advertisement
Manufacturer sources
Links document the stated identity, specifications, or scoped relations. They do not represent hands-on testing by this site.
- Prusa Research — 1.75 mm - Glossary | Prusa Knowledge Base checked 2026-10-30; global
- Prusa Research — Installing or changing the Nextruder V6 Nozzle Adapter | Prusa Knowledge Base checked 2026-10-30; global
- E3D — Brass Prusa Nextruder Nozzles checked 2026-10-30; global
- E3D — Brass High Flow Prusa Nextruder Nozzles checked 2026-10-30; global
- E3D — ObXidian® Prusa Nextruder Nozzles checked 2026-10-30; global
- E3D — ObXidian® High Flow Prusa Nextruder Nozzles checked 2026-10-30; global
- Prusa Research — Nextruder Hotend brass High Flow - 0.40 mm | Original Prusa 3D printers directly from Josef Prusa checked 2026-10-30; global
- Prusa Research — Nextruder V6 Nozzle Adapter | Original Prusa 3D printers directly from Josef Prusa checked 2026-10-30; global
Search purchase options
This opens Amazon search results, not a verified product listing. Match the exact part number, diameter, installed hardware, and manufacturer instructions before ordering.
(paid link)
Search Replacement Parts on AmazonAdvertisement