Printer model

ELEGOO Neptune 4 Pro: nozzle kits, versions and specs

ELEGOO's Neptune 4 Pro specs, and why its nozzle kits fit only the Type-C version of the Neptune 4 and 4 Pro, not the ribbon-cable units.

Also listed as Neptune 4

We may earn a commission if you buy through links on this page. How we make money

Short answer

Check your version first: ELEGOO lists its Neptune 4-series hardened steel and brass nozzle kits for the Type-C Neptune 4 and 4 Pro only, not the ribbon-cable units. ELEGOO's global page gives the 4 Pro a 300 °C nozzle maximum, a 225 x 225 x 265 mm build volume, Klipper pre-installed and a dual-gear direct extruder. See Neptune 4 ribbon cable vs Type-C.

What fits

  • HotendMicro Swiss FlowTech hotend for ELEGOO Neptune 4 / 4 Pro (M3107)FlowTech hotend for Neptune 4 / 4 Pro (M3107)Check price on Amazon

Key facts

Build volume
225 x 225 x 265 mm[1]ELEGOO's stated print volume from its global spec table, not the plate outline.
Motion system
Not confirmed
Stock extruder
Dual-gear direct extruder[1]
Stock hotend
Not confirmed
Nozzle standard
Not confirmedELEGOO's MK8 statement is in its Neptune 3 FAQ and covers the Neptune 3 series only. Use ELEGOO's Neptune 4-series nozzle kits and their version rule.
Stock nozzle
Not confirmed
Max nozzle temperature
300 °C[1]From ELEGOO's global product page.
Max bed temperature
ELEGOO's global page lists 100 °C[1]We did not read ELEGOO's other regional listings, which may state a different figure. Check your own unit's documentation.
Firmware
Klipper, pre-installed[1]
Latest listed firmware
Not confirmedELEGOO's product page gives no firmware version.
Power input
115/230 V, 50/60 Hz[1]ELEGOO's spec-table voltage row. The page does not say how the voltage is selected and gives no rated printer power, only heater outputs (100 W + 150 W segmented bed). Check the label on your unit and follow ELEGOO's manual.
Hardware revisions
Ribbon-cable and Type-C versions; ELEGOO's Neptune 4-series nozzle kits fit only the Type-C Neptune 4 and 4 Pro[2][3]ELEGOO's kit pages carry a 'Verify Version Compatibility' notice. Ribbon-cable Neptune 4 and 4 Pro units are excluded.
Maker maintenance rules
Not confirmed
Documented upgrade kits
ELEGOO hardened steel nozzle kit and multi-size brass nozzle kit for the Neptune 4 series (Type-C version only)[2][3]ELEGOO's version rule covers these nozzle kits only, not extruders, cables or plates.
Recall status
No recall found on 2026-10-08[4]On 2026-10-08 we found the Bambu Lab A1 recall as the only 3D printer recall in CPSC's notices. That is a dated search, not proof that no recall exists.
Not confirmed
Not confirmedELEGOO's global product page states none of these, and we did not read the US listing.

Watch out for

  • ELEGOO lists its Neptune 4-series hardened steel and brass nozzle kits for the Type-C Neptune 4 and 4 Pro only. A ribbon-cable 4 Pro is excluded, so check your version before ordering.
  • ELEGOO's Neptune 3 FAQ (MK8 nozzles, a 27 mm all-metal throat) covers the Neptune 3 series, not the Neptune 4.
  • ELEGOO's authorized-reseller page names no Amazon or AliExpress store; for the US and Canada it points to us.elegoo.com and ca.elegoo.com.

What fits

Product details below are the seller's own description unless a source is shown. Pick the variant named for each item.

  • Hotend

    Micro Swiss FlowTech hotend for ELEGOO Neptune 4 / 4 Pro (M3107)

    Choose the Neptune 4 / 4 Pro version (M3107), not the Plus / Max version (M3108).

    Micro Swiss names the Neptune 4 and 4 Pro and says firmware and z-height stay stock. It makes no ribbon-cable vs Type-C statement, so check with Micro Swiss for your unit.

The Neptune 4 (non-Pro) shares the Type-C-only rule for ELEGOO's Neptune 4-series nozzle kits. The build volume, temperatures and voltage on this page are ELEGOO's Neptune 4 Pro figures; we did not confirm them for the Neptune 4.

Questions

Do ELEGOO's Neptune 4 nozzle kits fit my Neptune 4 Pro?

Only the Type-C version. ELEGOO lists its hardened steel and multi-size brass nozzle kits for the Type-C Neptune 4 and 4 Pro only, so ribbon-cable units are excluded.[2][3]

How hot can the Neptune 4 Pro nozzle and bed get?

ELEGOO's global product page lists 300 °C for the nozzle and 100 °C for the bed. We did not read ELEGOO's other regional listings, so check your own unit's documentation for the bed figure.[1]

Does the Neptune 4 Pro run Klipper?

Yes. ELEGOO says the Neptune 4 Pro ships with Klipper firmware pre-installed. Its product page gives no firmware version, so use the firmware ELEGOO publishes for your exact model.[1]

Sources

  1. ELEGOO Neptune 4 Pro FDM 3D Printer – ELEGOO Official · ELEGOO · Global ELEGOO product page, Neptune 4 Pro specs and features. · checked 8 Oct 2026
  2. Hardened Steel Nozzle Kit for Neptune 4 Series – ELEGOO US · ELEGOO · ELEGOO US product page; version compatibility notice for Neptune 4/4 Pro/4 Plus/4 Max. · checked 8 Oct 2026
  3. Elegoo Multi-Size Brass Nozzle Kit for Neptune 4 Plus/4 Max – ELEGOO US · ELEGOO · ELEGOO US product page; brass nozzle kit version compatibility for Neptune 4 series. · checked 8 Oct 2026
  4. Bambu Lab Recalls A1 3D Printers Due to Electric Shock and Fire Hazards · U.S. Consumer Product Safety Commission · US recall 24-264 of Bambu Lab A1 printers, June 13, 2024: units, hazard, remedy, identification, incidents. · checked 8 Oct 2026
  5. Authorized resellers · ELEGOO · ELEGOO official stores and authorized resellers. · checked 8 Oct 2026
  6. Frequently Asked Questions for Neptune 3 PRO&PLUS&MAX – ELEGOO Official · ELEGOO · Maker FAQ for Neptune 3 Pro, Plus and Max: voltage, firmware, nozzle, hotend, maintenance. · checked 8 Oct 2026

Next review due 7 Jan 2027.