Blower Fan 4010 Radial Cooling Fan 3D Printer 12V 2 Pin DC 40mm Review (2026)

A basic replacement cooling fan, not an upgrade part

This is a standard 4010-size radial blower fan, meaning it measures 40 by 40 by 10mm and uses the centrifugal blower design that most 3D printers rely on to direct focused air onto freshly extruded layers rather than blowing air broadly like an axial fan. It runs on 12 volts DC through a 2-pin connector, which fits older printer control boards and several budget printer lines that still use 12V power rather than the 24V now common on newer machines. This part suits someone replacing a failed or noisy stock part cooling fan on compatible 12V hardware, not someone looking for a higher-airflow or quieter upgrade fan, since it is a commodity-grade part rather than a premium blower.

Voltage, connector, and what to check before buying

The single most important spec on any replacement blower fan is voltage matching, and this listing is specifically the 12V version, which will spin too slowly to be useful, or in some cases not spin reliably at all, if installed on a 24V board expecting a 24V fan. Comparable 4010 blower fans from other brands typically run in the range of 6,000 to 7,500 RPM with modest airflow figures around 2.5 to 3 CFM and noise in the mid-20 to low-30 decibel range, though exact performance varies by manufacturer and this listing does not publish its own tested figures, so treat those ranges as generally representative of this fan class rather than a confirmed spec for this specific unit.

Installing and living with a basic blower fan

Swapping a 4010 blower is usually a simple job on printers designed around that mounting size, since the screw pattern and 2-pin connector are common across the Ender and similar budget printer families, though it is worth checking your printer's connector polarity before plugging in a generic replacement fan. Because this is a single fan rather than a multi-pack, buyers doing a full maintenance pass on more than one printer, or wanting a spare on hand for the future, will need to order more than one unit. Basic blower fans like this one are wear parts, and bearing noise or reduced airflow over time is normal and expected as the fan accumulates hours.

How it compares with other cooling fans in this guide

This guide ranks the fan last among the part cooling fans covered, behind several 24V and multi-pack options from brands like Winsinn, Furiga, and Xiitia that either run at the more common 24V or include multiple fans per purchase. The main reason for its lower placement is that a single 12V fan has a narrower range of compatible printers than the 24V options above it in this list, and buyers get one fan rather than a pack, which matters if you are stocking spares. For anyone whose printer specifically runs 12V, this fan still does the basic job it is meant to do.

Verdict: fine for the right printer, easy to mismatch

This 4010 blower fan is an inexpensive, functional replacement for the specific case of a 12V printer board needing a basic part cooling fan, and installation is straightforward on compatible mounts. Its main risk is buyer error: installing a 12V fan on a 24V printer, which is an easy and common mix-up. Buyers on 24V hardware, or anyone wanting spares on hand, should look at one of the multi-pack 24V options ranked higher in this guide instead. For anyone who has already confirmed their board's voltage and simply needs a single, no-frills replacement part, this fan does exactly the basic job it is built for without unnecessary extras.

Frequently asked questions