Will This Part Fit My Appliance?

Choose your brand from the list below to check your model compatibility.

Start typing your model number below to check compatibility.

Description

Grooved ring for a leak proof pressure washer

The high-pressure output and pump head are connected by the grooved ring. It creates a secure and stable connection that prevents leaks when its grooves precisely line up with corresponding slots on the pump head and outlet.

This grooved ring guarantees a constant high-pressure flow while preventing water from escaping.

When do you replace it?

If the grooved ring becomes damaged, worn out, or shows signs of deterioration, replace it. The constant pressure and exposure to water and chemicals cause the grooved ring to degrade, leading to leaks or decreased performance. 

Regularly inspecting and replacing the grooved ring helps maintain the pressure washer and prevents water leakage issues.

Is it a genuine spare part?

This grooved ring by Karcher is a genuine pressure washer replacement part. 

Manufacturers Part Number:

  • 6.365-394.0

Alternative Part Numbers:

  1. 63653940

EAN Number:

  • 4002667186987

Will this part fit your appliance?

Use our compatibility checker, Click here.

Finding your model number:

TBC

Safety note:

Warning: Always unplug any appliance from the electricity supply before carrying out any work or testing on it.

Latest Product Review(s)

5 Customer Review(s)

Great Service

Good communications as the product was not in stock, arrived when it said it would cannot fault Ransoms.

By Barry Huntley - Upchurch
15th Jun 2023

Overall

Quality

Value

Ease of Fitting

Karcher 520m

Quality parts and service , very tight fit , heating seals aided assembly

By George Hitchen - Wem
21st Nov 2022

Overall

Quality

Value

Ease of Fitting

great product

very good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt deliveryvery good product , prompt delivery,

By brian lee - shrewsbury
16th Jun 2020

Overall

Quality

Value

Ease of Fitting

Challenging to fit!

Bought the grooved ring (3 required) after my 520M failed big time and the gearbox filled with water. Complete disassembly of the pump is quite ambitious and not for the faint hearted. The grooved ring almost looks like it is too big to fit and is the wrong part, but with a little silicone grease applied, and fitting by titling it in, then easing it into its housing it does fit. Don't be tempted to fit it in the wrong way around which looks easier and also make sure the housing was all the old lime scale etc removed. I also put my seals in hot water before fitting just to make them more supple as they are quite hard rubber. They do go in, in the end and fit very well! Once I had fitted all new seals and a new 'excess current' valve the Karcher worked better than ever.

By Brian White - Milton Keynes
20th May 2020

Overall

Quality

Value

Ease of Fitting

Changing this part improves the pressure attained

Right then. If you've got the karcher units with a triangular pump and if it's not generating the pressure it once did, this will be the part that needs changing. Basically once these are changed the pistons fit their bores much tighter, reducing pressure bypassing. You'll need a sharp flat bladed screwdriver and some patience to change these out, but it's well worth it.

By Paul Beckett - Stevenage United kingdom
18th Nov 2019

Overall

Quality

Value

Ease of Fitting

Questions And Answers

Be the first to ask a question for this product.

Ask a new question

Customers Also Viewed