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Karcher K5 Pressure Washer Control Head 9.001-800.0 - Genuine Karcher

SKU 9.001-800.0
BARCODE 4039784539754
By: Karcher
Original price $195.00 - Original price $195.00
Original price
$195.00
$195.00 - $195.00
Current price $195.00
Availability: 2 in stock ready to be shipped or picked up

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Delivery Options:

→ Pickup available at: 208 Princes Highway, Arncliffe.
→ Same day delivery within Sydney, Australia.
→ We ship nationwide.

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Karcher K5 Control Head – Genuine Pressure Washer Replacement Part

Instantly restore the intense, factory-level blasting power of your premium Karcher machine with the Karcher K5 Control Head (9.001-800.0). Over years of heavy-duty domestic cleaning, the internal components of a pressure washer are subjected to immense hydraulic stress. If your machine is suddenly suffering from severe pressure loss, aggressive pulsing, or irregular water flow, a cracked or worn control head is often the culprit. This genuine pressure washer replacement part acts as the vital mechanical heart of your machine. By replacing the faulty unit, you guarantee a perfect, airtight internal seal, instantly reviving your equipment's ability to strip heavy grime from driveways and vehicles.

Using cheap, generic aftermarket components inside high-pressure water systems frequently leads to catastrophic internal leaks and further motor damage. This component is a 100% authentic, precision-engineered Karcher K5 spare part. Manufactured from ultra-dense, reinforced plastic housing and featuring heavy-duty internal brass fittings, it is built to easily withstand massive internal water pressure without fracturing. Whether you are an appliance repair technician servicing a client's machine or a DIY homeowner refusing to throw away an expensive washer, this essential pressure washer control head is the ultimate, cost-effective solution for extending the operational lifespan of your Karcher K5 series.

Who Is This Karcher K5 Control Head Ideal For?

The 9.001-800.0 Control Head delivers genuine Karcher reliability and pressure restoration. It is highly recommended for:

  • Appliance Repair Technicians: Sourcing authentic, exact-fit pressure washer replacement parts to perform highly reliable, warrantable internal pump repairs on clients' Karcher K5 machines.
  • Domestic Homeowners: Saving hundreds of dollars by affordably repairing their pulsing or leaking pressure washer instead of throwing the entire expensive machine into landfill.
  • Automotive Detailers: Keeping their vital Karcher K5 equipment running at absolute peak pressure washer performance to ensure they can blast heavy mud off 4x4 vehicles without interruption.
  • Tool & Equipment Hire Companies: Utilizing genuine Karcher K5 spare parts to quickly rebuild heavily abused rental washers, ensuring they are operating perfectly for the next customer.

Key Features and Performance Benefits:

  • Genuine Karcher Engineering: 100% authentic OEM replacement part. This guarantees flawless dimensional compatibility, ensuring it aligns perfectly with the internal pump mechanics without leaking.
  • Restores Maximum Pressure: A cracked control head bleeds pressure internally, causing the machine to pulse and lose power. This brand-new unit restores 100% of the machine's aggressive water-blasting capability.
  • Heavy-Duty Construction: Manufactured from specialized, pressure-resistant reinforced polymer plastics and equipped with premium internal brass fittings to prevent corrosion and cracking.
  • Fixes Motor Pulsing: Resolves the highly common, frustrating issue where the pressure washer motor rapidly turns on and off by itself when the trigger is released.
  • Cost-Effective Machine Repair: Completely eliminates the need to discard a perfectly functional electric motor and chassis just because a single internal pump component failed.

Technical Specifications & Compatibility:

  • Brand: Karcher (Genuine OEM Part)
  • Product Type: Pressure Washer Control Head Assembly
  • Part Number: 9.001-800.0
  • Material: Reinforced plastic housing with internal brass fittings.
  • Function: Regulates internal hydraulic water flow and high-pressure delivery.
  • Compatibility: Specifically engineered to suit the Karcher K5 Pressure Washer Series.

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 exactly does a 'Control Head' do?

The control head is a critical internal pump component. It regulates the flow of water and houses the bypass valves. It ensures that when you pull the trigger, high-pressure water comes out, and when you release the trigger, the pressure is safely diverted.

How do I know if my control head is broken?

The most common symptoms of a cracked or faulty control head are a massive loss of pressure at the nozzle, water actively leaking from the bottom of the machine casing, or the machine rapidly 'pulsing' (turning on and off) when you aren't pulling the trigger.

Is this a genuine Karcher part?

Yes, absolutely. This is a 100% authentic Karcher OEM replacement part (9.001-800.0), guaranteeing it will fit the internal mechanics of your K5 perfectly without leaking.

Will this fit my Karcher K3 or K4?

No. The internal pump dimensions and pressure tolerances vary wildly between Karcher models. This specific control head is explicitly engineered for the Karcher K5 series only.

Can I install this part myself?

While it is a common DIY repair for handy homeowners, it requires opening the machine casing, removing the pump head, and carefully aligning internal seals. If you are not confident with mechanical repairs, it should be installed by an appliance technician.

Does this part come with the internal O-rings?

This is generally supplied as the complete control head block as pictured. However, you should carefully retain and inspect your existing internal piston seals and triangular gaskets, replacing them separately if they are flattened or torn.

Why did my original control head crack?

Control heads usually crack for two reasons: The machine was left outside in freezing winter temperatures (causing the water inside to turn to ice and expand), or the machine was run for a long time without pulling the trigger, causing the water inside to boil and melt the plastic.

Is the control head made of metal?

The main outer housing is manufactured from an ultra-dense, pressure-resistant reinforced polymer plastic, while critical internal valve fittings and threaded components are made from heavy-duty brass.

Will replacing this fix my motor if it won't turn on at all?

No. If the machine is completely dead and makes no sound when you turn the power switch on, you likely have a burnt-out electrical motor or a blown capacitor. The control head only fixes water pressure and pulsing issues.

Can I use hot water through my K5 after installing this?

No. The Karcher K5 is strictly a Cold Water pressure washer. Pumping hot water through the machine will rapidly expand and melt the plastic control head and ruin the internal rubber seals.

How long will this replacement part last?

Because it is a genuine Karcher part, it will provide years of reliable service, provided you do not leave the machine running without pulling the trigger for more than 2 minutes, and protect it from winter freezing.

Do you offer trade pricing for small engine mechanics?

Yes, Freshway Supplies provides highly competitive volume pricing and trade accounts for appliance repair technicians, small engine mechanics, and commercial cleaners. Contact us to establish your trade account for spare parts.

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