Quick answer

Replacing the Dyson DC41 pre-motor filter is a DIY job of about 10 minutes. Compatible pre-motor filters currently start at $8.68. Replace it Every 3 months under normal use. Full step-by-step below.

The DC41 pre-motor filter is washable foam-and-fleece. Because it's reusable, replace it only when rinsing no longer restores it — grey after washing, torn, or gone limp. A tired pre-filter shows up as weaker suction and dust on the exhaust.

Compatible Pre-Motor Filter for the Dyson DC41

Prices pulled from Amazon and verified September 2026. “OEM” is a genuine Dyson part; the rest are tested aftermarket options.

PartTypePriceRating
Lemige Vacuum Filters Replacement Parts for Dyson DC41 DC65 DC66 UP13 UP20 UP30 Animal, Multi Floor and Ball Animal 2 Aniaml 3 Vacuums, Part 920769-01&920640-01, 1 Pack Post Filter & 1 Pack Pre Filter Aftermarket $11.77 4.75★ (8,829) Buy on Amazon
Filter Replacement for Dyson DC41 DC65 DC66 UP13 UP20 UP30 Hepa Post-Motor Filter & Pre-Motor Filter, Multi Floor, Animal and Ball Vacuums Ball Animal 2 Ball Animal 3. Part#920769-01 & 920640-01 Aftermarket $13.99 4.75★ (5,387) Buy on Amazon
3Pack Pre Filters Replacement for Dyson - Vacuum Filter Compatible with Dyson V6 V7 V8 DC59 DC58 Replaces Part 965661 01 (3 Pack) Aftermarket $9.99
$3.33/ea
4.85★ (3,842) Buy on Amazon
Replacement Filter for Dyson DC40 UP16 UP19, Post-Motor Filter and Pre-Motor Filter for Dyson Ball Multi Floor 2 Vacuum Light/Slim Ball Animal Vacuum, Part# 923587-02 & 922676-01 Aftermarket $15.98 4.85★ (2,332) Buy on Amazon
ZXZHL Replacement Washable Pre Motor Filter for Dyson DC05, DC08, DC14, DC15 Vacuum Cleaner Motor, Replaces Part 905401-01 & 901420-02 Aftermarket $8.68 4.8★ (1,778) Buy on Amazon
6 Pack Replacement Vacuum Filter for Dyson DC41 DC41 DC65 DC66 Vacuum,3 Pack Post Filter & 3 Pack Pre Filter Aftermarket $22.99
$3.83/ea
4.75★ (952) Buy on Amazon

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About the Dyson DC41

The Dyson DC41 (2011) is a corded Ball upright and a close relative of the DC65 — it uses the same style of washable purple pre-motor filter seated under a lid at the top of the machine. It's the filter that guards the motor and needs the most frequent attention.

Step-by-Step: Replacing the Dyson DC41 Pre-Motor Filter

1
Power off and unplug
Disconnect the DC41 from the wall before opening the filter lid.
2
Open the filter lid
Lift the lid on top of the machine to reveal the purple pre-motor filter.
3
Remove the old filter
Lift the purple filter out and away from you so loose dust doesn't drop back inside.
4
Insert the new (dry) filter
Seat the new filter flat in the housing. If reusing a washed filter, confirm it is completely dry.
5
Close and test
Click the lid shut, plug in, and run briefly to check suction is restored.

⚠ Common mistakes on the DC41

As with all Dyson washable filters, the mistake that kills motors is refitting it damp — allow a full 24 hours of air-drying. The other is confusing the pre-motor filter with the post-motor HEPA (a separate part on the DC41); they are not interchangeable.

✓ OEM vs aftermarket for the DC41

Genuine Dyson gives a guaranteed seal; good aftermarket purple filters are inexpensive — just confirm the listing lists the DC41 (often bundled as DC41/DC65/DC66) rather than a generic 'Dyson upright' fit.

🔁 How often to replace

The Dyson DC41 pre-motor filter should be replaced Every 3 months under normal use — sooner with pets or daily heavy use. Signs it's due: Reduced suction.

How we made this page: the steps are written for the Dyson DC41 specifically; the compatible-part list is pulled from our parts database and price-checked against Amazon. Last verified September 2026.