Quick answer

Replacing the Dyson V7 pre-motor filter is a DIY job of about 10 minutes. Compatible pre-motor filters currently start at $9.98. Replace it Every 3 months under normal use. Full step-by-step below.

The V7 pre-motor filter is the purple lift-off unit at the top of the machine, fully washable. Replace it when rinsing no longer restores it, or it tears or hardens. A clogged pre-filter is the usual reason a V7 pulses or cuts out mid-clean.

Compatible Pre-Motor Filter for the Dyson V7

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

PartTypePriceRating
Dyson DC-07 Washable & Reusable Pre-Filter, Replaces Dyson DC07 Pre-Motor Filter Part # 904979-02 (90497902) (Buy 1 Filter) OEM $9.98 4.85★ (257) 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
4 Pack Replacement Pre-Filters for Dyson V8, V7, V6, SV04, DC58, Vacuums Kit Includes 4 Filters, Enhance the Performance of Your Dyson with This Filter Replacement Set. Replaces Part # 965661-01 Aftermarket $9.99
$2.50/ea
4.85★ (365) Buy on Amazon
8 Pack Vacuum Filter Replacement Kit for Dyson V7, V8 Animal and V8 Absolute Vacuum, 4 Post Filter, 4 Pre Filter, Replaces Part # 965661-01 & 967478-01 Aftermarket $18.19
$2.27/ea
4.85★ (359) Buy on Amazon
V8 Filter Replacement Kit for Dyson V7 V8 Vacuums, with Pinch Pre-Filter, Compare to Part 967478-01 & 965661-01, 6 Pack Aftermarket $12.99
$2.17/ea
4.95★ (35) Buy on Amazon

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About the Dyson V7

The Dyson V7 is a cordless stick with a click-in battery. Like the V8 it has a washable purple pre-motor filter on top plus a post-motor filter. This page covers the pre-motor filter — the one that needs the most frequent care.

Step-by-Step: Replacing the Dyson V7 Pre-Motor Filter

1
Power off
Switch the V7 off before removing the filter.
2
Lift off the pre-motor filter
Twist/lift the purple filter unit from the top of the machine.
3
Fit the new (or washed, dry) filter
Seat the new purple filter; if reusing, confirm it's completely dry.
4
Lock it back on
Refit until it seats squarely.
5
Test
Power on and confirm steady suction.

⚠ Common mistakes on the V7

The V7 mistake behind pulsing is a clogged filter, not the battery — check it first. And never refit it damp: air-dry a full 24 hours, cold water only, no detergent.

✓ OEM vs aftermarket for the V7

Genuine Dyson V7 filters fit exactly; aftermarket ones are cheap and fine when the listing names the V7 (its filter differs from the V6 and V10/V11). A dry spare keeps you vacuuming while one dries.

🔁 How often to replace

The Dyson V7 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 V7 specifically; the compatible-part list is pulled from our parts database and price-checked against Amazon. Last verified September 2026.