after many years of reliable service, my MK3S extruder has started to show some issues. I’m experiencing recurring filament problems and frequent nozzle clogging. Yesterday, it eventually stopped feeding filament altogether and began clicking.

Because of this, I’ve decided to fully rebuild the extruder. I will replace all necessary components, buy new parts where it makes sense, and reprint all printable parts as well.

My hotend has clearly seen a lot of use over the years, so I would like to replace it completely, including the cables, which also seem to be in rather poor condition.

Since this rebuild will take quite some time and effort for me, I would like to take the opportunity to replace any other parts that are likely to be worn out after so many years of use.

Could anyone advise which additional components are worth replacing during such a rebuild, even if they are not yet completely failing?

I would also be very grateful for any recommendations regarding good-quality (and reasonably priced) replacement parts, as well as trusted places to buy them.

Thank you very much in advance for your help!