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Kärcher Vacuum Cleaner Filter Set (6.904-143.0)

SKU 6.904-143.0
BARCODE 4002667015317
By: Karcher
Save 1% Save 1%
Original price $49.00
Original price $49.00 - Original price $49.00
Original price $49.00
Current price $48.63
$48.63 - $48.63
Current price $48.63
Availability: This product will be delivered in 3-5 business days
Size: 5 PK
Colour: Brown

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Delivery Notice:

Please allow 3-5 business days for processing before it's ready for delivery or pickup. All standard delivery options still apply.

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Karcher WD Series Filter Set (6.904-143.0) – Vacuum Replacement Parts

Execute highly aggressive, continuous worksite decontamination and instantly restore the massive extraction power of your heavy-duty Karcher wet and dry vacuum with the genuine Karcher Vacuum Cleaner Filter Set (6.904-143.0). In the demanding commercial construction, mechanical workshop, and disaster restoration sectors, utilizing a vacuum with severely degraded filters is a massive operational liability. Choked paper filters restrict vital engine airflow, causing rapid motor burnout, while torn foam filters allow highly abrasive grit and water to flood the spinning turbine directly. This professional-grade vacuum replacement part kit provides the ultimate, comprehensive filtration overhaul. Engineered explicitly for the renowned Karcher WD 4, WD 5, and WD 6 series, it includes both the high-density flat pleated filter for dry dust, and the specialized cellular foam filter for wet extraction, ensuring absolute engine protection regardless of the environmental hazard.

Designed for unparalleled worksite productivity and absolute operator convenience, the Karcher Filter Set ensures your machine is fully equipped to handle any severe cleanup task instantly. The massive surface area of the flat pleated filter permanently traps microscopic concrete dust and heavy sawdust, while the heavy-duty foam sleeve acts as a flawless physical barrier, deflecting solid debris while allowing massive volumes of liquid to be safely extracted. By deploying these elite commercial cleaning supplies and industrial cleaning tools, facility managers, builders, and tradespeople can guarantee their Karcher vacuums maintain 100% factory-new suction velocity, drastically extending the lifespan of their expensive capital equipment.

Who Is The Karcher WD Filter Set Ideal For?

The Karcher 6.904-143.0 Filter Kit delivers a comprehensive 2-piece filtration overhaul, genuine OEM reliability, and strict WD series compatibility. It is highly recommended for:

  • Commercial Builders & Carpenters: Utilizing highly robust, genuine vacuum replacement parts to ensure their fleet of Karcher WD vacuums is completely protected from engine failure. The flat pleated filter acts as an impenetrable wall against highly abrasive circular-saw sawdust and fine plaster dust.
  • Plumbers & Wet-Spill Responders: Relying on the heavy-duty foam filter component. When extracting massive volumes of water from a flooded bathroom or ruptured pipe, the specialized foam sleeve protects the motor from sucking in solid debris suspended in the dirty water.
  • Mechanical Workshops & Factories: Taking absolute advantage of the complete filtration overhaul. Mechanics who transition constantly between vacuuming dry metal shavings and extracting heavy liquid coolant spills require both filters to ensure their machine never loses suction power or seizes.
  • Facility OH&S Managers: Deploying premium industrial cleaning tools that actively protect the facility's air quality. A brand-new, clean pleated filter guarantees that 99% of fine, hazardous worksite dust is permanently locked inside the machine, preventing it from blowing into the operator's face.

Key Features and Performance Benefits:

  • Complete 2-Piece Filtration Overhaul: The ultimate maintenance advantage. Buying filters individually is frustrating and expensive. This comprehensive kit provides the essential Flat Pleated Filter (for dry dust) and the heavy-duty Foam Filter sleeve (for wet extraction) in a single, highly economical package.
  • High-Density Flat Pleated Matrix: Protects your facility's machinery. The dry filter is engineered with deep 'accordion' pleats. This massively increases the physical surface area, allowing it to hold a massive amount of fine dust without immediately restricting the engine's crucial cooling airflow.
  • Cellular Foam Wet-Extraction Sleeve: Ensures strict worksite versatility. When vacuuming massive liquid spills, a standard paper filter instantly turns to useless mush. You remove the paper filter and slide this specialized foam sleeve over the motor cage; it deflects solid rocks and debris while letting water pass safely into the bucket.
  • Restores Maximum Suction Power: Reduces ongoing commercial overheads. A clogged, completely black exhaust filter suffocates the vacuum, dropping suction to zero. Replacing these filters instantly relieves the pressure, radically restoring the machine's massive, factory-new extraction performance.
  • Genuine Karcher OEM Quality: Maximizes worksite reliability. Manufactured directly by Karcher, these genuine replacement parts guarantee a flawless, airtight rubber seal inside the machine. This completely prevents 'bypass' dust from leaking past the edges and destroying the vacuum motor.

Technical Specifications & Capabilities:

  • Brand: Karcher (Genuine OEM Part)
  • Part Number: 6.904-143.0
  • Product Type: Vacuum Filter Kit / Wet & Dry Filters / Vacuum Replacement Parts
  • Included Component 1: 1 x High-Density Flat Pleated Filter (For Dry Dust)
  • Included Component 2: 1 x Cellular Foam Filter Sleeve (For Wet Extraction)
  • Application: Complete filtration overhaul for seamless wet and dry commercial vacuuming.
  • Machine Compatibility: Engineered explicitly for Karcher WD 4, WD 5, and WD 6 series wet & dry vacuum cleaners.

Dispatch: Items marked as “In stock” or “Ready to be shipped” are usually dispatched within 1 business day after payment is received. If an item is not in stock and ordered from our supplier, please allow 3–5 business days for processing before it is ready for delivery or pickup. All standard delivery options still apply.

Shipping: Delivery costs are calculated at checkout based on your location and order size. Bulky items and chemicals may attract additional freight charges and cannot be sent to PO Boxes.

Delivery: Parcels are delivered by road freight. Authority to leave may be used if no one is available to receive the order. For full details, please see our Shipping & Delivery Policy

Business days to delivery

NSW
City 1 Day
VIC
Melbourne 1 Day
Regional 3–4 Days
QUEENSLAND
Brisbane 1–2 Days
Regional 3–4 Days
SOUTH AUSTRALIA
Adelaide 2–3 Days
Regional 4–5 Days
NORTHERN TERRITORY
All Areas 4–6 Days
WESTERN AUSTRALIA
All Areas 4–6 Days
TASMANIA
All Areas 4–6 Days
What is included in this Filter Set?

This is a comprehensive, 2-piece maintenance kit. It includes one (1) rigid Flat Pleated Filter cartridge (which is strictly used for vacuuming dry dirt and fine dust), AND one (1) flexible cellular Foam Filter sleeve (which is strictly used when vacuuming wet liquid spills).

Is this a genuine Karcher product or a cheap copy?

This (Part 6.904-143.0) is a 100% genuine, OEM (Original Equipment Manufacturer) replacement kit manufactured by Karcher. Using genuine filters guarantees a perfect, airtight seal inside your machine, completely preventing fine dust from bypassing the filter and destroying your motor.

Which specific Karcher machines does this kit fit?

This specific filter set is explicitly engineered as the primary replacement kit for the Karcher WD 4, WD 5, and WD 6 series of heavy-duty Wet & Dry vacuum cleaners.

Can I leave the paper pleated filter in when vacuuming water?

Absolutely, unequivocally NOT. If you vacuum massive volumes of liquid while the dry paper pleated filter is installed, the paper will instantly turn into a soggy, useless mush, destroying the filter and potentially flooding your vacuum motor. You MUST remove the pleated filter before wet extraction.

How do I use the Foam Filter?

When you need to vacuum a wet liquid spill, you first remove the dry paper pleated filter from the machine. You then take the Foam Filter sleeve and slide it securely over the internal plastic motor cage. The foam stops solid rocks and debris from hitting the spinning motor while letting the water pass safely.

How often should I replace the flat pleated filter?

In a heavy-duty commercial or construction environment, you should completely replace the flat pleated filter every 6 to 12 months. Once the microscopic pores become permanently choked with embedded grit, your vacuum will lose massive amounts of suction power and overheat.

Can I wash the flat pleated filter with water to clean it?

While some Karcher synthetic filters are washable, standard high-density paper pleated filters are easily damaged by water. It is always safest to clean it by carefully tapping the hard plastic edge against the inside of a rubbish bin to dislodge the heavy, caked-on dust from between the pleats.

Can I wash the foam filter?

Yes! The cellular foam filter sleeve is highly durable. After extracting filthy, muddy water, you can simply pull the foam sleeve off, rinse it aggressively under a warm tap with mild detergent, squeeze it out, and let it air dry completely before the next use.

Why has my vacuum lost all its suction power?

If the main collection tub is empty, but the machine has no suction and feels incredibly hot to touch, your flat pleated filter is completely choked with microscopic dust. The motor is suffocating. Replacing the filter with this new kit will instantly restore 100% of the factory suction.

What is the advantage of a 'Flat' filter over a round cylinder filter?

Older, round cylindrical filters hang down deep inside the vacuum bucket, wasting massive amounts of storage space. The 'Flat Pleated' design sits completely flush in the roof of the machine. This allows you to fill the entire 100% volume of the massive WD bucket with dirt and water.

What happens if I run the vacuum without any filters?

If you run the machine without a filter installed, you will suck massive amounts of abrasive grit, sawdust, or water straight into the spinning engine turbine. You will permanently destroy the vacuum motor beyond repair instantly.

Do you offer trade pricing for construction companies?

Yes, Freshway Supplies provides highly competitive volume pricing and trade accounts for commercial builders, plumbers, and facility managers ordering bulk vacuum replacement parts and heavy-duty hardware. Contact us to establish your account.

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