5015 Blower Fan 5v Fan (Prusa MK3 / MK3S replacement) by LDO Motors

Prusa MK3 and MK3S users often face cooling inefficiencies or noisy fans that can impact print quality and reliability. A failing or underperforming blower fan can cause overheating of the hotend or poor layer adhesion, leading to print failures.

This 5015 blower fan by LDO Motors is designed as a direct replacement for the Prusa MK3 and MK3S blower fan, delivering 4500 RPM and 7.38 CFM airflow at a quiet 29 dBA noise level. Featuring a 3-pin connector with 750mm leads, it ensures easy installation and compatibility with the Prusa ecosystem. LDO Motors is a trusted supplier known for quality parts in the 3D printing community, making this fan ideal for maintaining optimal print cooling and extending the life of your Prusa MK3 series printer.

Why Upgrade?

• Restore effective part cooling on Prusa MK3 and MK3S printers to prevent overheating and improve print quality
• Reduce fan noise compared to worn or generic replacements, maintaining a quieter printing environment
• Ensure reliable 3-pin connector compatibility for hassle-free installation and stable operation
• Maintain consistent airflow to avoid layer adhesion issues and stringing common with failing fans
• Trusted LDO Motors quality supports long-term durability in demanding print cycles

Best For:

• Prusa MK3 and MK3S owners needing a direct blower fan replacement
• Users upgrading worn or noisy stock fans to improve cooling performance
• 3D printing enthusiasts maintaining their Prusa MK3 series for consistent print results
• Community members in the Prusa ecosystem seeking reliable, drop-in cooling parts
• Those requiring a 5V blower fan with a 3-pin connector and long leads for flexible wiring

Pair With the Right Filament

Optimal cooling from this blower fan supports printing with PLA and PETG filaments, which benefit from consistent part cooling to reduce stringing and improve surface finish.

• PLA Filament — enhanced cooling reduces warping and stringing for detailed prints
• PETG Filament — stable airflow helps manage PETG’s cooling needs to prevent oozing