Original Prusa i3 MK3 is listed in the Prusa Research 3D printer catalog. This page separates documented specifications from scoped compatibility rules, so an unlisted combination stays unverified.
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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. Manufacturer: Prusa Research. Model or part number: Original Prusa i3 MK3.
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 i3 MK3 |
| Filament diameter | 1.75 mm |
Model-specific notes
- Legacy model identity preserved separately; unverified numeric specifications are not copied from its successor.
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: E3D V6. This does not identify an aftermarket modification.
Documented relationships
Showing 2 of 2 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 |
|---|---|---|---|
| Prusa V6 24V HotEnd For Prusa MK3 — Assembled / 24V | CONDITIONAL | hotend to printer | Retain or correctly prepare the Prusa-specific PTFE tube; it is not included in this replacement hotend.; Use the exact electrical assembly/variant for this printer and follow the manufacturer installation and calibration instructions.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| Original Prusa MMU3 | NOT RECOMMENDED | feeder to printer | Original MK3 extruder hardware and firmware are not optimized; upgrade to MK3S+ first. |
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 — MMU3 Compatibility | Prusa Knowledge Base checked 2026-10-30; global
- E3D — Prusa V6 24V HotEnd For Prusa MK3 checked 2026-10-30; global
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