Prusa Research MK4 series: exact printer models and hardware differences

MK4 series includes 2 documented model identities. Compare each exact model and inspect hardware revision and installed hotend information before choosing a replacement.

Before you rely on a result

A documented product or fit statement is only as specific as its source. Match the exact model, installed hotend, revision, and required adapter before acting.

Documented models in this series

Exact model	Model code	Max nozzle temperature	Cataloged stock interface
Original Prusa MK4S	Original Prusa MK4S	290 °C	Prusa Nextruder
Original Prusa MK4	Original Prusa MK4	not established	Prusa Nextruder

Revision and upgrade check

Family membership does not make the models share a nozzle, heater, feeder, or installation process. Open the exact model page to inspect revision notes and manufacturer source links. If a hotend was upgraded, identify the installed assembly first.