Karcher Pressure Washer O-Ring Seal

Stock Number: ES538186

Manufactured by Karcher

In Stock Available for immediate despatch

Rated 4.6 out of 5 (15 customers)

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Karcher Pressure Washers


Pressure Washer O Ring Seal

If you need to replace the O ring seal in your Karcher pressure washer, this could be the ideal replacement for you. This is a genuine spare O Ring seal from Karcher, that could soon be yours to help get your pressure washer back in full working order.


  • Diameter: Inner 19mm - 20mm Outer
  • Dimensions: 10 x 2 NBR 70

Genuine spare part suitable 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 (15 customers)
Write a review
  • O ring

    • 5.0 out of 5
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    • 5.0 out of 5

    By - Inverness

    Easy to fit and did its job perfectly, much easier and cheaper than sending unit to Karcher for repair.
  • Easy to fit and a tight seal.

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

    By - UK

    A definite requirement if replacing the outlet connection as invariably the o ring is lost or damaged on removal of the outlet nozzle.
  • No use

    • 1.0 out of 5
    • 1.0 out of 5
    • 1.0 out of 5
    • 1.0 out of 5

    By - Scotland

    The O-ring was not made of thick enough material to form a seal, and it was of no use to me although it was expensive. Instead, I bought a much less expensive Draper's attachment and used the ring out of it.

Ask & Answer

(3 Questions and 3 Answers) Ask a question
  • Q What is the actual size of the ring please ie. circumference and diameter 1 Answer

    I have an alternative use and need to use the ring for sealing water leak on a very old water cistern and they do not make the appliance any more. It looks just the type I need.

    By P Trivedi - shropshire - 04 November 2015

    • A
      We are sorry but cannot provide the details of the dimensions you require. If unsuitable you can return subject to our policy listed at: http://www.espares.co.uk/returns

      By Chris eSpares Staff - 06 November 2015

  • Q How does the 'O' ring actually fit? 1 Answer

    There does not seem to be an obvious groove for the @o@ ring to fit into. I messed the current one by it going into the locking slot. Do you have a diagram that shows its position. Your video doesn't really help as it doesn't show the 'O'ring in place or how to refit the assembly.

    By len8jq - 23 April 2010

    • A
      If you contact us with the full model details of your appliance, we should be able to send you a line drawing of your appliance which should hopefully help. If you do require further assistance please contact Karcher directly or a technician. Hopefully this link helps: http://www.espares.co.uk/findingmodelnumbers.aspx

      By eSparesMalindi eSpares Staff - 23 June 2010

  • Q loss of water pressure 1 Answer

    I have a Karcher 310. Yesterday the motor made a small "pop" sound and the water pressure dropped, and water started coming thro the vents in the back of the machine (and still thro the lance). Could you please advise what the problem is and what part I will need to hopefully fix this problem. The motor is still working.

    By deckie - Derby - 09 April 2009

    • A
      Hi Deckie, I'm going to refer you to the instruction manual for your model, which can be viewed here: http://www.espares.co.uk/datastore/ProductManuals/561741.pdf If you go to page 18 of the document, it has a troubleshooting guide with ways you can diagnose the cause of your problem.

      By Rory eSpares Staff - 02 June 2009