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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:

  • 6.365-447.0

Alternative Part Numbers:

  1. 63654470

EAN Number:

  • 4002667393736

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Safety note:

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

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Questions And Answers

1 Answer(s)
Hi Looking for pistons washers rings as my unit has problem with pulsing pressure seals with metal frame inside for Karcher 3.99
By Michael - Greenford - 23/03/2021
Hi Michael, please submit a part enquiry including the TYP number beginning 1. so we can confirm the correct part.
By Jordan - Staff Member
1 Answer(s)
Is your part number RS508688 - pressure washer grooved ring the same as the Karcher K3 1.636-431 piston seal?
By Alan - STOKE-ON-TRENT - 19/01/2022
Hi Alan, the grooved ring for the piston on your model is RS512877.
By Jordan - Staff Member

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