Karcher Pressure Washer O Ring Kit

Stock Number: ES537803

Manufactured by Karcher

In Stock Available for immediate despatch

Rated 4.6 out of 5 (61 customers)

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Karcher Pressure Washers


Pressure Washer O-Ring Kit

Keep your pressure washer hose and hand gun leak-free with these replacement seals. Each pack contains sixteen O-rings and four yellow rubber stoppers. The O Rings consist of 5 different sizes, to ensure all your needs are covered. You will soon be able to use your Karcher pressure washer without fear of a leak again in no time!


  • 16 O-rings (across 5 sizes)
  • 4 Yellow rubber stoppers

Genuine spare part for select models of Karcher pressure washers.

Please check the suitable model fit list to ensure that this is the correct part for your appliance.

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Product Reviews

Rated 4.6 out of 5 (61 customers)
Write a review
  • Contains everything needed

    • 3.0 out of 5
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    • 1.0 out of 5

    By - Belfast

    Overall a good product which certainly did the job but could have been smaller
  • Did the job though not an exact match

    • 4.0 out of 5
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    • 4.0 out of 5


    The trigger/lance of my K411A washer had developed a leak, which became quite bad. The lance design isn't one of the ones shown on the packaging, but three of the O rings were the size required. There are still few drips but it's much improved. I now realise that the leaking lance was causing a loss of pressure and the unloading valve not to malfunction, which in turn caused the on-off switch to burn out. I wish I had fixed the lance sooner. The other O rings in the package might come in useful in future.
  • \\\\\\\\\\\\\\\\\\\\\\\the product worked well

    • 5.0 out of 5
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    • 5.0 out of 5

    By - North Yorkshire

    easy to fit/////////////////////////////////////////

Ask & Answer

(16 Questions and 15 Answers) Ask a question
  • Q I have a K399 when I switch it on it surges until I press the trigger on the gun. 2 Answers

    By crippin - Pontypool Torfaen - 08 January 2012

    • A
      you may have a leaking O ring

      By Clive - Swansea - 06 June 2013

    • A
      Hi Crippen sounds like you have a fracture in the control head as I did, this opens when the machine builds up presure and then releases it through the fracture, it is likely the fracture is under the metal head plate used to secure the unit head hence you cant see it, I know your post is long ago but this may help others as when I read the posts on the espares site it was no end of help to me. If the seals are ok on everything else I suggest replacing the control head housing.

      By Rob - N Ireland - 08 January 2013

  • Q why does my Karcher K2 leak water when motor is running,and motor does not stop when releasing trigger 1 Answer

    By mjh - Wstmidlands,England - 28 March 2015

    • A
      It is likely the motor pump has a split and as a result it will not produce enough pressure to shut off.

      By Chris eSpares Staff - 30 March 2015

  • Q when i turn pressure on lead blows out of machine is there a washer missing 1 Answer

    By sam c - co down - 16 February 2015

    • A
      It may be due to a split input connector see our video: Replacing the inlet and outlet connectors on a Karcher pressure washer http://www.espares.co.uk/advice/8/1166

      By Chris eSpares Staff - 16 February 2015

  • Q I Have A K2.59 M Thats Leaking At The Pump ,keeps motor going when switched on but trigger not pressed, Can it Be Fixed. 1 Answer

    By Dave Hill - Boston Spa, Wetherby. W.Yorks - 04 October 2013

    • A
      Any leak from the high pressure side of the washer will cause the motor to pulse. Replacing the cylinder head and seals is the most likely (but not only) reason for this problem.

      By Chris eSpares Staff - 07 October 2013

  • Q Red 'O' Ring on hose to trigger connection 1 Answer

    The red 'O' ring seems to be very thin in comparison to the collar on the hose to trigger gun fitting and there is a lot of movement, is this correct?

    By Anonymous - Tarland - 01 November 2010

    • A
      I have just fitted one to my pressure hose and it really works; no leaks

      By Anonymous - Humbersise - 29 June 2011