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Original Prusa i3 MK3/S to MK3S+ upgrade kit

Upgrade kit for the Original Prusa i3 MK3/S to Original Prusa i3 MK3S+. With this upgrade, we are introducing the SuperPINDA and a number of small changes. X and Y axes have slightly improved plastic parts and u-bolts were changed to metal clips which are easier to mount. A number of minor changes were done to the extruder plastic parts to improve overall reliability.

You will need this upgrade in case you are using MK3 and planning to buy the MMU2S.

Otherwise, if your MK3/S runs without any issues, you will not gain any significant printing quality improvements.

Not compatible with

This product includes:

This product is supplied as a kit - you must assemble it by yourself!

Printed parts are NOT included! Please print them before you disassemble your MK3/S! (Filament is included in the upgrade package and STL/G-codes are available at


9 reviews
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Beverley Gavin
Beverley Gavinlast month

The description does not give enough information, I would like to selectively apply the upgrade to only the extruder, is this possible or do I have to apply all the upgrade parts on this page to be successful ?

Beverley Gavin
Beverley Gavinlast month

If I click on the parts for the upgrade it takes me to some other page showing full printers and not the actual parts ?

Sawtelle Stephen
Sawtelle Stephenlast month

Excellent upgrade. The step-by-step instructions, including CLEARLY stating the requirement to print parts BEFORE starting with disassembly, are easy-to-follow and well illustrated. Very pleased with the upgrade kit and end result.

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