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My Karcher 300 is pulsing when not in use is the problem the cylinder head o ring.it is triangle in shape and does look like it may be damaged

Answer this Question (1 Answer)

  • Chris from eSpares
    Chris at eSpares says...

    If the machine is not leaking the problem is likely to be the piston seals or the cylinder head assembly.

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Pressure Washer O-Ring Seal Stock Number: ES538199

Genuine spare part suitable for select models Karcher pressure washers

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