![Introduction](https://cdn.help.prusa3d.com/wp-content/uploads/2023/12/2ba575a17a2ec258bf4b3b5e8fc99e7b_painted.jpeg)
⬢This guide will take you through the Hotend fan replacement on your Original Prusa MK4 or MK3.9.
⬢All necessary parts are available in our eshop prusa3d.com.
Note that you have to be logged in to have access to the spare parts section.
If you have a question about something that isn't covered here, check out our additional resources.
And if that doesn't do the trick, you can send an inquiry to [email protected] or through the button below.