4010 Silent Cooling Fan – 5V Hydraulic Bearing | Prusa i3 MK3 / MK3S / MK3S Compatible | 40x40x10mm | 3D Printer Parts

Description This 40x40x10mm axial fan is a drop-in replacement for the hotend or part cooling fan in the Prusa MK3 series, running quietly and efficiently at just 5V. The hydraulic bearing ensures low noise, long service life, and consistent performance — ideal for maintaining your printer’s thermal stability. ✅ Compatible with Prusa i3 MK3 / MK3S / MK3S ✅ 5V input with pre-soldered JST or Dupont connector (if applicable)✅ 40x40x10mm size – standard 4010 format✅ Hydraulic bearing – long lifespan and low noise✅ Perfect for hotend or extruder cooling Rated Voltage: 5V Cable Length: Approximately 750mm Note: the fan has two sides,but the side with sticker must be always facing the hotend (not visible when the fan is mounted). Otherwise the cooling won’t work properly.