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Wet/dry · Kärcher

Kärcher WD3 Vacuum Bags

The Kärcher WD3 takes Kärcher KFI 357 (WD 3 / MV 3 / WD 2 Plus) bags. Here's the exact part number, the top-rated packs in stock today, and how to replace it.

By BolsasPro Team Updated on ⏱ 3 min read

✅ Quick answer

The Kärcher WD3 uses Kärcher KFI 357 (WD 3 / MV 3 / WD 2 Plus) bags (genuine part number 2.863-314.0).

Genuine part numbers
2.863-314.0KFI 3576.959-130.0
Vacuum type
Wet/dry vac
Typical material
Mixed
Capacity
17 liters
Production years
2010–2026

Fits all its variants: WD 3, WD3 P, WD 3 P, WD3 Premium, WD 3 Premium, WD 3 Battery, WD 3 Battery Premium, WD 3-18, WD 3 S V-17/4/20, WD 3 V-17/4/20, WD 3 P V-17/4/20, WD3S.

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📑 Contents +

⚡ Top picks for your Kärcher WD3

Stock checked on October 5, 2026
Top ratedKarcher Filter Fleece Bags 4 Pack, Compatible with…
Karcher Filter Fleece Bags 4 Pack, Compatible with… 9.4 BolsasPro score: 9.4 out of 10 Check price
Best sellerDust Bag Filter Accessories Kit for Karcher WD3 WD2 WD2…
Dust Bag Filter Accessories Kit for Karcher WD3 WD2 WD2… 8.8 BolsasPro score: 8.8 out of 10 Check price
Best price per bag5/10 Pack Fleece Filter Bags Compatible with Karcher…
5/10 Pack Fleece Filter Bags Compatible with Karcher… 6.7 BolsasPro score: 6.7 out of 10 Check price

Kärcher WD3 bags in stock

See more compatible bags on Amazon →

BolsasPro score: combines the average rating and the number of buyer reviews on Amazon.

How to confirm it's your model

Find the vacuum's rating plate: it's usually on the bottom or under the bag compartment lid. It shows the exact model. If it matches the Kärcher WD3 or one of its variants (WD 3, WD3 P, WD 3 P, WD3 Premium, WD 3 Premium, WD 3 Battery), these bags will fit.

Tip: if you still have a used bag, check the cardboard collar. If it says 2.863-314.0, you're on the right track.

How to change the bag on the Kärcher WD3

  1. Unplug the vac and release the latches to lift off the motor head.
  2. Remove the used bag by pulling its collar off the inner intake port and throw it away sealed.
  3. Push the new bag's collar onto the tank's intake port until it's secure.
  4. Spread the bag across the bottom of the tank and reattach the motor head.
  5. For picking up liquids, always remove the bag (and on many models the paper filter too).

How often should you change the bag?

It depends on what you pick up. Fine construction dust (drywall, cement, sanding) clogs it in one or two sessions; cleaning out the garage or car it can last months. The clear sign is a loss of suction.

Equivalent part numbers

These part numbers all refer to the same bag. If a compatible pack lists any of them, it fits your vacuum:

  • 2.863-314.0
  • KFI 357
  • 6.959-130.0

Other vacuums that use the Kärcher KFI 357 (WD 3 / MV 3 / WD 2 Plus) bag

If you own any of these vacuums, you can buy exactly the same bags:

More Kärcher models

Frequently asked questions

What bag does the Kärcher WD3 take?+

The Kärcher WD3 uses Kärcher KFI 357 (WD 3 / MV 3 / WD 2 Plus) bags. The genuine part number is 2.863-314.0 (also listed as KFI 357, 6.959-130.0). Compatible bags that list that part number or the model in the title also fit.

Do compatible bags work in the Kärcher WD3?+

Yes. Good-quality compatible bags have the same cardboard collar and are usually multi-layer microfiber, which filters as well as or better than the original paper. Pick packs with lots of reviews that list part number 2.863-314.0.

How often should you change the bag on the Kärcher WD3?+

It depends on what you pick up. Fine construction dust (drywall, cement, sanding) clogs it in one or two sessions; cleaning out the garage or car it can last months. The clear sign is a loss of suction.

Can I use the Kärcher WD3 without a bag?+

Yes, and you must remove it to pick up liquids. For dust and dry debris, always use a bag: it protects the filter, maintains suction, and keeps fine dust from blowing out the exhaust.

⭐ Our pick

Karcher Filter Fleece Bags 4 Pack, Compatible with…

Check price