The 4010 blower is the part cooling fan that sits behind the duct on the Ender-3 V2, Ender-5 Pro, Ender-5 Plus and CR-6 SE. It is a wear item: when overhangs start sagging, bridges droop or the machine develops a dry rattle on every layer, the fan is usually the reason rather than the slicer profile. This is the stock size and connector, so it drops into the existing shroud without printing an adapter or splicing on a new plug. Worth buying two, since a spare in the drawer means a failed fan costs you an evening instead of a fortnight.
Good for
- Fixing sagging overhangs and bridges
- Silencing a rattling toolhead
- Spare part for a busy workshop
- Restoring cooling on an older Ender
