Karcher Pressure Washer O-Ring Seal

Stock Number: ES538186

Manufactured by Karcher

In Stock Available for immediate despatch

Rated 4.6 out of 5 (17 customers)

Read all reviews Write a review

Main product image Enlarge icon enlarge image

Will this part fit my appliance? [?]

Click on your brand to check if this part fits your appliance

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
  • This O-ring fits near to the cylinder head housing


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.

Karcher spares reference: 6.362-151.0

More product images

Product Reviews

Rated 4.6 out of 5 (17 customers)
Write a review
  • Karcher K2 "O"

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

    By - Wakefield

    Quality sealing ring but a bit expensive (if you knew its size, would be as cheap to buy a pack instead of just one probably)
  • great service and even better service

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

    By - Market Harborough

    Never appreciated the breadth of spares available. in the past I used to either throw the appliance away or pay a fortune for someone else to fix it Now at reasonable cost I can do all the repairs myself. Have repaired three appliances over the last 12 months and saved a lot ofmoney hile getting a great deal of satisfaction
  • O ring

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

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