Genuine Prusa Thermistor E3D OEM

Prusa MK3 and MK3S users know that accurate temperature sensing is critical to preventing thermal runaway and ensuring consistent print quality — a faulty thermistor can cause sudden print failures or damage to the hotend.

This Genuine Prusa Thermistor E3D OEM is a standard Semitec cartridge thermistor with a Prusa-specific 750mm extension cable and Molex 5057-9402 connector, matching the exact component supplied directly to Prusa. Designed for Prusa MK2, MK3, MK3S, and Mini models, this 3mm diameter, 15mm length thermistor supports temperatures up to 300°C, making it ideal for all-metal E3D V6 hotends. It ensures precise temperature readings for stable extrusion and reliable print results in the Prusa ecosystem.

Why Upgrade?

• Maintains accurate temperature readings critical for preventing thermal runaway on Prusa MK3 and MK3S printers
• Ensures compatibility with genuine E3D V6 hotends used in Prusa builds for consistent extrusion
• Replaces worn or damaged thermistors to avoid sudden print failures or hotend damage
• Supports high-temperature printing up to 300°C for advanced filament options
• Includes Prusa-specific connector and cable for easy plug-and-play replacement

Best For:

• Prusa MK3 and MK3S users needing OEM thermistor replacements
• Prusa Mini owners requiring reliable temperature sensors for all-metal hotends
• Prusa MK2 and MK2S printers upgrading to genuine E3D thermistor cartridges
• 3D printing enthusiasts maintaining their Prusa ecosystem with authentic parts
• Users printing with filaments requiring stable temperature control up to 300°C

Pair With the Right Filament

This thermistor ensures stable temperature control essential for printing a wide range of filaments on Prusa printers.

• PLA Filament — ideal for standard printing with consistent temperature monitoring
• PETG Filament — supports higher temperature extrusion with reliable sensor feedback
• ABS Filament — enables stable high-temp printing requiring precise thermistor readings