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Karcher Pressure Washer O Ring Kit Stock Number: ES537803

Keep your pressure washer hose and hand gun leak-free with these replacement seals

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By Colin Deazeley - Ayr - 03 November 2019
  • This is happening on my pressure washer too - I purchased it in August 2019 and have only used it 3-4 times. Now any tool I attach leaves they yellow plastic ‘O ring’ behind when I remove the tool By Steve S - UK - 08 February 2020
  • eSpares Staff from eSpares
    eSpares Staff at eSpares says...

    Have you checked for anything broken that might cause it to come out?

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By S Brown - Lancashire - 06 June 2016
  • I replaced the capacitor - my machine just stopped working - water flowed through fine at low pressure but the pump stopped. New capacitor solved the problem By DLP - woking - 01 August 2016
  • Chris from eSpares
    Chris at eSpares says...

    For information on your repair see our video: How to Diagnose Pressure Washer Electrical Problems: http://www.espares.co.uk/advice/8/3267

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By crippin - Pontypool Torfaen - 08 January 2012
  • you may have a leaking O ring By Clive - Swansea - 06 June 2013
  • 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
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When the vario power lance is attached to the handle and I pull the trigger water pours out of the handle. If I remove the lance there is no leak. I have changed the o ring on the lance where it connects to the handle and also the o ring where the hose connects to the handle but it still leaks. The pressure from the lance seems good and it does not appear to be blocked the motor sounds normal and is not pulsing -any ideas?

By Claire - SHEFFIELD - 26 September 2019
  • eSpares Staff from eSpares
    eSpares Staff at eSpares says...

    It is likely the O ring seal may be damaged so not making a watertight seal, check it and replace if required.

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By Jon Reed - Keswick Cumbria - 19 October 2018
  • eSpares Staff from eSpares
    eSpares Staff at eSpares says...

    We have a video to help www.youtube.com/watch?v=4WZgprLndhU just copy and paste into your browser.

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Model. K2 900m / 1.671-344

By John French - Charlton - 29 August 2017
  • Chris from eSpares
    Chris at eSpares says...

    The O rings only stop a leak and will not cure your problem. Suspect a blockage or restriction in the spray lance if the spray is fine and the machine cycles on and off repeatedly.

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I have a Karcher k2.396 pressure washer and it is leaking badly I will order new ones if I know how to fit them, can you help?

By Sue Fellows - Birmingham - 18 August 2017
  • Dean from eSpares
    Dean at eSpares says...

    Please see our video for information www.youtube.com/watch?v=4WZgprLndhU just copy and paste into your browser.

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The Chemical Discharge bottle will continue to fill up without any power on and then stops as the pump uses the water with power. I reckon it is probably a valve maybe that feeds the clear plastic pipe. Can you advise please which part /valve requires replacing. Mine is a K6.50Mb unit.

By Mike - Manchester - 09 March 2016
  • Chris from eSpares
    Chris at eSpares says...

    The problem is likely to be caused by Stock Number: ES1751853 leaking.

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Hi, I asked a question on here about 3 or 4 months ago, as having not used my pressure washer for some months it had started leaking. It made a rattling noise when I moved it. It was suggested the fault might be the O Rings. I have a Karcher extension hose between the front of the unit and the pressure gun. That has seized onto the pressure washer, and however hard i try i cannot shift it. As a result I hadn't got round to stripping the washer. Today I finally got round to trying to sort it. Two issues: 1. I cannot shift the hose from the washer. Any tricks to loosen this please (I have tried squirting GT40 in there, but it is not loosening); and 2. I opened the back off the machine. The noise is two screws about 9mm long and heads about 16-17mm wide rattling around inside. The motor and internal bits are not attached to the case in any way. Any idea where these screws are from, and is the motor supposed to be attached to the case. Do you still thing this is the O-Rings? Thanks for your help, Stuart

By Stuart - Harrogate - 06 February 2016
  • Chris from eSpares
    Chris at eSpares says...

    The motor appears to be clamped by the upper and lower cases and doesn't appear to have any fixing screws. To remove the hose try heating with a hair dryer to expand and soften the hose screw fixing.

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I have a k2 411A washer which leaks and pulses only when the trigger is operated. 1) is it worth fixing? 2)where can I get the parts in the u.k? details are also... NR. 189164 K2 (1.994-972) 441198 19949720189164 I hope you can help Thanks Ashley

By Ashley - Somerset U.K. - 07 December 2015
  • Chris from eSpares
    Chris at eSpares says...

    The pulsing is due to the leak allowing the pressure to escape. Disconnect and remove the case then just connect the water to the unit to identify where the leak is occurring. We can supply the parts once identified.

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Karcher Pressure Washer O Ring Kit

16.92
(inc. VAT)
16.92