Karcher High Pressure Extension Hose - 6m

Stock Number: ES547351

Manufactured by Karcher

Rated 4.8 out of 5 (34 customers)

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Will this part fit my appliance? [?]

This product is compatible with:

  • Karcher Domestic K1 Series Pressure Washers
  • Karcher Domestic K2 Series Pressure Washers
  • Karcher Domestic K3 Series Pressure Washers
  • Karcher Domestic K4 Series Pressure Washers
  • Karcher Domestic K5 Series Pressure Washers
  • Karcher Domestic K6 Series Pressure Washers
  • Karcher Domestic K7 Series Pressure Washers

Click on your brand to check other appliances this part fits

Karcher Pressure Washers


This Kärcher 6 metre high pressure extension will allow you to work in a much larger radius of the pressure washer, clean a far greater distance from the pressure washer, and this gives long uninterrupted periods of use.

To know if this hose will fit your Karcher pressure washer you'll need to know the your model number.

Please note: This part is an extension hose and can only be used in conjunction with the existing hose and does not fit onto machines with internal hose reels. If your hose fits into the base of the gun with a quick release clip use part number 6.390-961.0 (ES875473). If your hose fits into the front of the trigger guard and you push a button to remove the clip (generally found on newer machines) use part number 2.641-710.0 (ES1115581).

This is Karcher spares reference: 6.390-243.0

How to replace a Karcher hose and handgun

This video should help with fitting this part. However, the exact layout and fitting technique may differ for your make and model.

Be safe - always unplug any appliance from the electricity supply before carrying out any work on it.
If you are in any doubt contact a qualified repairer.

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Product Reviews

Rated 4.8 out of 5 (34 customers)
Write a review
  • the best.

    • 5.0 out of 5
    • 5.0 out of 5
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    • 5.0 out of 5

    By - hartlepool

    Just what i wanted service was exceptionel. Item great,simply great.
  • excellent product.

    • 5.0 out of 5
    • 5.0 out of 5
    • 5.0 out of 5
    • 5.0 out of 5


    I have just purchased a 6m. extension pressure hose for my k2 karcher pressure washer from e-spares which I have just used for the first time. It really is a first class piece of kit of the highest quality, and means that you do not have to keep moving the pressure washer , as this extends the full length of hose from the gun to the machine to 10ms.
  • Must have accessory

    • 5.0 out of 5
    • 5.0 out of 5
    • 5.0 out of 5
    • 5.0 out of 5

    By - Kent

    Being able to work all around the car without having to keep re-positioning the pressure washer makes car washing so much easier. Wish I'd bought it sooner!

Ask & Answer

(7 Questions and 7 Answers) Ask a question
  • Q will this hose fit my washer, part no, 1.673-226.0. thanks 1 Answer

    By Anonymous - west wales - 10 November 2014

    • A
      This hose is no longer available use Stock Number: ES953192 for the Karcher K2 series.

      By Chris eSpares Staff - 11 November 2014

  • Q Will the 6 m Karcher extension hose fit my new K2 Premium Home and Car 1 Answer

    My part number 1 673 302 0 Ta

    By Dorset boy - Dorset - 19 June 2014

    • A

      By Chris eSpares Staff - 19 June 2014

  • Q i would like to add a extension hose to my existing model 380 nr 035050 1 Answer

    Does the extension hose connect into the lance thus disregarding my excisting hose or does it connect into the lance lead i have attached all ready

    By happy days 71 - Plymouth - 25 March 2014

    • A
      This is suitable to extend any hose that uses the screw fitting and does not have a quick fit push connection to the high pressure hose at the machine.

      By Chris eSpares Staff - 25 March 2014

  • Q my k2900 has a fixed hose and a screw on connector to the unit. How do i get and fit a longer hose or drain cleaner 1 Answer

    By peter - 12 March 2014

    • A
      This extension hose will fit between your gun hose and the machine to extend it. The drain kit will plug into the gun when the spray lance is removed.

      By Chris eSpares Staff - 12 March 2014

  • Q how does the extension 6.390-243 fit onto a karcher k6.75 1 Answer

    i had it as a christmas present but come to use it yesterday and was unable to attach it

    By macker - birmingham - 19 April 2010

    • A
      Unfortunately we cannot provide fitting instructions for this part. Please contact Karcher or a technician for help with this.

      By eSparesMalindi eSpares Staff - 18 June 2010