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Pressure Washer O-Ring Pressure Washer Seal - Pack of 5 Stock Number: ES537802

Genuine spare part for select models of Karcher pressure washers

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help please 2 Answers

hi can you tell me if this is a fault that is related to pump seals. my kb4040 will not auto stop when the trigger is released it carries on shunting if you know what i mean?would a seal kit fix it or is it something more serious. the machine is 2 years old so i was not thinking of replacing it just yet,if this is a seal problem will i have to strip the machine completely to gain access. any help is apprieciated also will the above kit be ok

By slippysam - scotland - 07 May 2009
  • Rory from eSpares
    Rory at eSpares says...

    Hi Slippysam, check out our pressure washer help guide for tips and videos: http://www.espares.co.uk/advice/pressure-washers/a/8

  • Sounds like you have the same problem as me. Yes, a new seal on the high pressure output should do the trick. Not necessary to strip down m/c. I have to replace mine each spring and I have come to the conclusion that frost may have got into the works. The 'shunting' you refer to is the m/c trying to maintain pressure in the high pressure hose. Hope this helps. Pack of 5 'O' rings should last you a few years, but keep the m/c away from frost. John By johnwill - Colchester - 09 May 2009
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its for the internal plunger one each side of valve

By petespeepers - ross on wye - 16 April 2009
  • Rory from eSpares
    Rory at eSpares says...

    Hi, these o-rings will only fit Karcher pressure washers I'm afraid.

  • No these fit the hose to pressure washer and handle both ends are the same o-ring. By jellymold - Leeds - 02 May 2009
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By rbfleck - - 24 February 2009
  • Rory from eSpares
    Rory at eSpares says...

    Hi Rbfleck, the o-rings fit between the high pressure hose and the washer itself.

  • Yes and also various other points on the lance By classic747 - Stonehaven - 26 February 2009
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By m h - s72 0bg - 12 August 2019
  • eSpares Staff from eSpares
    eSpares Staff at eSpares says...

    The most likely cause for the handgun to leak would be an O ring seal.

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By Phil Wedgwood - Stone stafffordshire - 28 December 2017
  • Chris from eSpares
    Chris at eSpares says...

    The case can be removed with a driver from Stock Number ES1772764

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as the water lays around it it seems like oil mixing with it

By H Murrell - Hemsby Norfolk - 16 September 2017
  • Dean from eSpares
    Dean at eSpares says...

    Check the seals first, have a look at our advice centre for more help http://www.espares.co.uk/advice/pressure-washers/a/8

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By graham - Stoke-on-Trent - 12 July 2017
  • Dean from eSpares
    Dean at eSpares says...

    Check the seals first, have a look at our advice centre for more help http://www.espares.co.uk/advice/pressure-washers/a/8

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when I use my Karcher there is no pressure and the unit is leaking water, would replacing the seals help or do you think the unit is broken

By mark - Slough - 09 May 2016
  • Parminder from eSpares
    Parminder at eSpares says...

    We would advise you to visit our advice centre which covers the problem you have. It should help you determine the cause: http://www.espares.co.uk/advice/8/3266

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Will these fit the type of machine I have

By Theresa - Birmingham - 11 April 2016
  • Chris from eSpares
    Chris at eSpares says...

    In order for us to source the exact part you require please provide us with the following information: Appliance make, model and serial number of your appliance. For further help visit the "Finding Model Numbers" page on our website here: http://www.espares.co.uk/findingmodelnumbers. Alternatively please copy and paste this link into your web browser.

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By patel - northampton - 22 July 2014
  • Chris from eSpares
    Chris at eSpares says...

    To dismantle a Karcher cleaner you will need a set of long torx screwdrivers like Stock Number: ES1251179

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Pressure Washer O-Ring Pressure Washer Seal - Pack of 5

£4.99
£4.99