Next Day Delivery Available
Karcher Pressure Washer Grooved Ring
Suitable For Models Of: Karcher Pressure Washers Read More
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:
- 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)
Great Service
Good communications as the product was not in stock, arrived when it said it would cannot fault Ransoms.
Karcher 520m
Quality parts and service , very tight fit , heating seals aided assembly
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,
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.
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.