Elegoo extruder and hotend kit, Neptune 4 / 4 Pro
This is the complete toolhead for the Neptune 4 and Neptune 4 Pro, with the extruder and hotend already assembled and its 4015 fan. It's the quickest way to get the printer working again when clogs won't clear, plastic leaks around the nozzle or temperature faults persist after checking the wiring. Elegoo makes it in two versions depending on the toolhead connection, and you need the right one.
- Assembled extruder and hotend, with a 4015 fan and up to 300 °C; part number 50.204.0062 (version A, Neptune 4 Pro).
- There are two versions: A, with the classic connector, and B, with USB-C. The shop explains that B-series machines have a “B” in their serial number.
- For the Elegoo Neptune 4 and Neptune 4 Pro.
- If plastic builds up around the nozzle into a blob, clean it off carefully while hot and check the nozzle is properly tightened before thinking about replacing the toolhead.
Where to buy it
Sold by 3DJake: on its website you see the final price, shipping, returns and warranty, and you pay there. usi3d does not sell it or take payment for it.
Link to the shop
View at 3DJake (opens in a new tab)
See price at the shop · VAT included, shipping set by the shop
If you buy through these links, usi3d may earn a commission from the shop; it costs you nothing extra. How we choose
Which printers it fits
- Elegoo Neptune 4
- Elegoo Neptune 4 Pro
Check at the shop that the variant you choose (model, size or connector) matches your printer before you buy it.
Problems it helps to fix
Symptoms it helps with: Clogged nozzle or hotend, No filament comes out, The hotend or the bed does not heat, Temperature error (MINTEMP, MAXTEMP, thermal runaway).
usi3d's troubleshooting guides with the symptoms it helps with and its printers:
- Neptune 4 and 4 Pro: plastic blob on the hotend (blob of death) or leaks around the nozzle
- Nozzle clogs or stops extruding mid-print (heat creep)
- The hotend or bed won't heat up, or takes too long
- Neptune 4: Klipper errors «Extrude below minimum temp», «Move exceeds maximum extrusion» or «MCU shutdown»
- Temperature error: Thermal runaway, MINTEMP, MAXTEMP or Heating failed
Technical data
- Brand
- ELEGOO
- Model
- Assembled Extruder Kit (Neptune 4 Pro, serie A)
- Manufacturer part number
- 50.204.0062
- EAN
- 6976021764013
- Variant
- Neptune 4 Pro (A-Serie)
- Fan
- 4015
- Maximum temperature
- 300 °C
- Shop
- 3DJake
From the manufacturer or the shop; they may vary by variant.
How to choose the right one
Check your printer's serial number and toolhead connection before ordering, and choose version A or B in the shop. Check the model too: the page groups variants for the Neptune 4, 4 Pro, 4 Plus and 4 Max.
How we choose products
usi3d shows products from other shops for their compatibility with your printer, because they help with a fault, because they ship to Spain and because the shop is trustworthy. The commission does not decide what we show or in what order.