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      karcher kb4040 doesnt seem to be firing at full pressure with no signs of leaking from anywhere any ideas to problem

      Answer this Question (1 Answer)

      • Dean from eSpares
        Dean at eSpares says...

        The cylinder head does have issues of cracking, it is worth taking it apart to check. Please check out our video on how to diagnose pressure washer pump problems www.youtube.com/watch?v=4WZgprLndhU

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      Pressure Washer Cylinder Pump Head Stock Number: ES538427

      Main product image View full product details

      Genuine pare part for select models of Karcher pressure washers

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