HT Hotend Upgrade (for CORE One/+ and CORE One L/+) is listed in the Prusa Research hotend catalog. This page separates documented specifications from scoped compatibility rules, so an unlisted combination stays unverified.
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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-ht-hotend-upgrade. Manufacturer: Prusa Research. Model or part number: not established.
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 |
|---|---|
| Interface family | prusa-nextruder |
| Filament diameter | 1.75 mm |
| Maximum temperature | 400 °C |
Documented relationships
Showing 10 of 10 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 CORE One | 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. |
| Prusa CORE One+ | CONDITIONAL | hotend to printer | Nextruder configuration only; INDX excluded. Follow the exact installation and firmware guide.; Excludes: INDX conversions and other unlisted aftermarket hotend changes are outside this stock-configuration fit unless expressly specified. |
| Prusa CORE One L | 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. |
| Prusa CORE One+ (Gen 2) | 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. |
| Prusa CORE One L+ | 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. |
| Original Prusa MK4 | INCOMPATIBLE | hotend to printer | Check source scope before installing. |
| Original Prusa MK4S | INCOMPATIBLE | hotend to printer | Check source scope before installing. |
| Original Prusa XL | INCOMPATIBLE | hotend to printer | Check source scope before installing. |
| Prusa XL+ | INCOMPATIBLE | hotend to printer | Check source scope before installing. |
| Bondtech INDX | INCOMPATIBLE | family to family | Check source scope before installing. |
Manufacturer sources
Links document the stated identity, specifications, or scoped relations. They do not represent hands-on testing by this site.
- Prusa Research — HT Hotend Upgrade (for CORE One/+ and CORE One L/+) | Original Prusa 3D printers directly from Josef Prusa checked 2026-10-30; global
- Prusa Research — 400°C HT Hotend is out! Plus: New Materials and HighTemp Sheets for CORE One+/L+. - Original Prusa 3D Printers checked 2026-10-30; global
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