Get The App From Play Store!

Skip to main content

BLACK FRIDAY EVENT use code BF25 at checkout to SAVE 25% when you spend £30 or more excluding delivery.

BLACK FRIDAY EVENT use code BF25 at checkout to SAVE 25% when you spend £30 or more excluding delivery.

Karcher Pressure Washer O Ring Kit Stock Number: ES537803

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

Read more

Manufactured by Karcher

(This part fits select models)

Will this part fit my Appliance?

Does it fit?
Enter your model number and select from the below list
Need help finding your appliance model number?

Check this part fits your appliance

2. Enter your model number

Pressure Washer O Ring Kit

If you are struggling to control the leak from your Karcher hose, trigger gun or other Karcher accessories, eSpares has just what you need. This Karcher replacement o-ring kit offers you the leak free experience.

This Karcher O ring kit contains 16 o rings and 4 yellow rubber stoppers. The O rings consist of 5 different sizes to make sure you will always be covered no matter the accessory, no matter the size. With the rubber stoppers you will be able to use your Karcher accessories without the fear of a leak again!

With the help of eSpares and this fantastic accessory, you can soon be on your way to cleaning the garden in no time!

Specification:

  • 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.

Karcher spares reference: 2.640-729.0

Ask a Question

32 Questions and 32 Answers

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?

Answer this question
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

Answer this question
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
Answer this question

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.

Answer this question
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.

Answer this question
See all questions and answers

Will this part fit my appliance?

Check Now

Karcher Pressure Washer O Ring Kit

£11.95
(inc. VAT)
£11.95