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Prusa Ventoinha de Impressão para MK4 MK3.9 XL arrefecimento hotend
  • Prusa Ventoinha de Impressão para MK4 MK3.9 XL arrefecimento hotend
Original Prusa Parts - Print Fan (MK4 / MK3.9 / XL)

Prusa

Original Prusa Parts - Print Fan (MK4 / MK3.9 / XL)

€12,49 EUR

The Print Fan is Prusa's official replacement part for hotend cooling in MK4, MK3.9, and XL printers. It is responsible for keeping the Nextruder heatsink at the appropriate temperature during printing, preventing heat creep — the improper transfer of heat to the hotend's cold zone, which causes clogs. Please note: not compatible with MK4S or MK3.9S — check the exact model before ordering.

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🌟 Print Fan – Prusa (MK4 / MK3.9 / XL)

The Print Fan is the official Prusa replacement part for hotend cooling in MK4, MK3.9, and XL printers. Responsible for maintaining the Nextruder heatsink at the proper temperature during printing, it prevents heat creep — the undue rise of heat to the cold zone of the hotend that causes clogs and extrusion failures. Its replacement restores correct hotend cooling and ensures reliable and continuous printing.

🔹 What makes the Prusa Print Fan stand out?

  • Official Prusa part — guaranteed quality and compatibility with the MK4, MK3.9, and XL Nextruder.
  • Continuous hotend heatsink cooling — keeps the Nextruder's cold zone at the correct temperature to prevent heat creep and clogs.
  • Direct replacement — fits into the original position without modifications.
  • Guided installation — repair manual available at help.prusa3d.com for the specific model.

✅ Advantages

  • Restores correct hotend cooling and prevents clogs caused by heat creep.
  • Original replacement part with factory quality.
  • Compatible with MK4, MK3.9, and XL.

⚙️ Compatibility

Compatible with:

  • Prusa MK4 · MK3.9 · XL

Not compatible with:

  • MK4S · MK3.9S · CORE One · CORE One+ · CORE One L · MK3.5 · MK3.5S · MK3S+ · MK3S · MK3 · MK2.5S · MK2.5 · MK2S · MK2 · MINI · MINI+ · MMU2S · MMU2 · MMU3 · SL1 · SL1S · CW1 · CW1S · HT90 · INDX

💡 Notes and Recommendations

  • Attention: not compatible with MK4S nor MK3.9S — verify the exact printer model before ordering.
  • Sold individually — includes 1 print fan.
  • For correct installation, consult the repair manual at help.prusa3d.com and select the specific printer model.
Smart3DPT

Material tested and approved by Smart3DPT ✅

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Frequently asked questions

Which Prusa printers is this print fan compatible with?

Compatible with Prusa MK4, MK3.9 and XL. Not compatible with MK4S, MK3.9S, CORE One, CORE One+, CORE One L, MK3.5 or earlier models. Always confirm your model before ordering.
What is the difference between the Print Fan and the Hotend Fan?

The Print Fan cools the air around the printed part (part cooling). The Hotend Fan continuously cools the Nextruder heatsink (prevents heat creep). These are two distinct components with different functions.
How do I know if this fan needs replacing?

Typical symptoms: part undercooling (melted-looking overhangs), abnormal noise, stoppage or reduced speed detected by firmware, or visible physical damage.
Where can I find the installation manual?

The repair manual is available at help.prusa3d.com — select the MK4, MK3.9 or XL model to access the correct print fan replacement guide.