Achieve perfect overhangs and sharp details. Replace a damaged, rattling, or silent part cooling fan with this verified, original Elegoo OEM blower assembly. This fan is critical for directing concentrated airflow directly onto your printed model, essential for high-speed bridging and complex cooling requirements.
This is a Genuine Elegoo OEM (Original Equipment Manufacturer) Blower Fan Assembly, harvested from an authenticated Neptune 4 Max. Unlike the heatsink fan that cools the hotend, this high-static-pressure blower is responsible for hardening the extruded plastic as it leaves the nozzle, making it the most important component for print quality.
PROFESSIONAL REPAIR RECOMMENDED:
Power Safety: Ensure the printer is completely powered off before disconnecting the toolhead ribbon cable or fan header.
Airflow Path: Ensure the blower duct is properly seated within the fan shroud. A misaligned duct will cause air to leak before it reaches the nozzle, leading to "oozing" or failed overhangs.
Hardware: Use the provided original screws. These blowers are mounted to plastic shrouds; over-tightening will crack the mounting tabs, while under-tightening will cause a high-pitched vibration/rattle during operation.
Risk: Self-installation is performed entirely at your own risk.
⚠️ PRE-OWNED HARVEST COMPLIANCE: Every blower fan has been meticulously extracted and tested for performance.
Blower Blade Health: Verified to be free of plastic filament buildup or "dusting," which can cause imbalance and vibration.
Static Pressure Integrity: Tested to ensure the blower is pushing the correct volume of air required for Klipper’s high-speed cooling profiles.
Connector Quality: The JST-style connector is verified for a secure fit, preventing intermittent fan failure mid-print.
Genuine Elegoo Factory Hardware: Guarantees 100% compatibility with your Neptune 4 Max. Cheap "generic" blowers often fail to move the volume of air required for the Neptune 4’s massive cooling system, leading to inconsistent print quality.
Integrated Hardware Kit: Includes the original matching screws for a secure, vibration-free mounting experience.
Balanced Impeller: Precision-balanced blades ensure that the fan operates quietly even at 100% duty cycle, preventing "vibration artifacts" from being transferred into your 3D models.
High-Static Pressure: Engineered specifically for the Neptune 4 Max's unique cooling duct design, ensuring air is focused precisely at the print tip.
"Fan Error" or "Fan Failed" Notifications: Resolves firmware alerts caused by a failed blower fan.
Poor Overhangs and Bridging: If your prints are curling or failing on small details, it is often due to a blower fan that is failing to move sufficient air.
Audible Vibration: Replaces a fan with a worn internal bushing that rattles against the toolhead housing.
Inconsistent Cooling: Fixes fans that stop or start intermittently, leading to varied surface finishes on the same model.
| Attribute | Specification |
| Compatible Model | Elegoo Neptune 4 Max |
| Component Type | Part Cooling / Blower Fan |
| Inclusions | Blower Fan Assembly + Original Mounting Screws |
| Condition | Used Original OEM (Tested, Performance Verified) |
| Donor Origin | Authenticated Elegoo Neptune 4 Max Pull |